CBSE Class 3 Mathematics Practice Worksheet Set B

I. Fill in the blanks

1. 1 Rupee = ________________ Paise.

2. 1 Day = ________________ Hours

3. 1 Hour = ________________ minutes

4. 1 Minute = ________________ seconds

5. 72 ÷ 9 = ________________

6. We write ________________ for a rupee.

I. Fill in the blanks

1. The smallest 1 digit number is ___________.

2. The largest 1 digit number is ___________.

3. The smallest two digit number is ___________.

4. The largest two digit number is ___________.

5. The smallest three digit number is ___________.

6. The largest three digit number is ___________.

7. The smallest four digit number is ___________.

8. The largest four digit number is ___________.

9. 1 Ten = ___________ ones.

10. 1 Hundred = ___________ Tens.

11. 10 Hundreds = ___________ Thousand

12. The smallest 5 digit number is ___________.

13. A number written in figures is the ___________.

14. A number written in words is the ___________.

15. The successor of 999 is ___________.

16. The predecessor of 7390 is ___________.

17. The place value of 5 in 6538 is ___________.

18. The place value of zero is ___________.

19. The face value of 7 in 6378 is ___________.

20. The number just before 2000 is ___________.

21. A number that comes just after a given number is called its ______________.

22. The successor of a number is ___________ greater than the number.

23. A number that comes just before a given number is called its

24. The predecessor of a number is ___________ less than the number.

25. The successor of 3999 is ___________.

II Write the number name

1. 9567 ______________________________________________ .

2. 3078 ______________________________________________ .

3. 7300 ______________________________________________ .

4. 6999 ______________________________________________ .

5. 7931 ______________________________________________ .

III Write the consecutive numerals

1. 5098 _________ , _________ , _________ , ________ , ________ .

2. 9900 _________ , _________ , _________ , _________ , _________

3. 7162 _________ , _________ , _________ , _________ , _________ .

4. 7999 _________ , _________ , _________ , _________ , _________ .

5. 4079 _________ , _________ , _________ , _________ , _________ .

6. 5899 _________ , _________ , _________ , _________ , _________ .

IV Write the consecutive numerals backwards

1. 6892 _________ , _________ , _________ , _________ , _________ .

2. 7520 _________ , _________ , _________ , _________ , _________ .

3. 6700 _________ , _________ , _________ , _________ , _________ .

4. 9670 _________ , _________ , _________ , _________ , _________ .

5. 8000 _________ , _________ , _________ , _________ , _________ .

6. 5100 _________ , _________ , _________ , _________ , _________ .

V Write the numerals

1. Six thousand seven hundred ninety five
________________________________________________________

2. Eight thousand five
________________________________________________________

3. Four thousand five
________________________________________________________

4. Three thousand four hundred sixty eight
________________________________________________________

5. Two thousand two hundred
________________________________________________________

6. Seven thousand sixty five
________________________________________________________

VI Write the successor and predecessor of the following

Number             Successor             Predecessor

1. 5950

2. 3999

3. 9907

4. 7001

5. 8900

6. 4385

7. 3000

VII Write the next five numbers according to the pattern given

1. 4017, 4027, 4037 ___________________________________________________

2. 1121, 2121, 3121 ___________________________________________________

3. 2305, 2310, 2315 __________________________________________________

4. 6045, 6050, 6055 _________________________________________________

5. 5125, 5225, 5325 _________________________________________________

6. 4022, 4024, 4026 _________________________________________________

VIII Write the place value and face value of the underlined digits.

Number             Face value             Place value

1. 3985

2. 6128

3. 7129

4. 5046

5. 9625

6. 1128

7. 6075

IX Fill in the blanks :

5185 = _____ thousands _____ hundreds _____ tens ______ ones

3029 = _____ thousands _____ hundreds _____ tens ______ ones

9999 = _____ thousands _____ hundreds _____ tens ______ ones

7650 = _____ thousands _____ hundreds _____ tens ______ ones

X Write the expanded form

5629

7120

5008

6125

3467

4813

6859

XI Write in the Short form

1. 8 thousands + 5 hundreds + 6 tens + 5 ones =

2. 9 thousands + 0 hundreds + 4 tens + 3 ones =

3. 5 thousands + 7 hundreds + 0 tens + 4 ones =

XII Show on abacus

1) 3015

2) 5423

3) 2006

4) 1824

XIII Fill in the blanks using < or >

1. 1359 _____ 650 

2. 2643 _____ 5818 

3. 4006 _____ 6009

4. 3148 _____ 3146

5. 7326 _____ 7456

6. 8436 _____ 8435

XIV Encircle the largest number

1. 8767, 7676, 6767, 8787, 7867

2. 4008, 4800, 4080, 4088, 4808

3. 1357, 1753, 1573, 1735 1537

XV Encircle the smallest number

1. 7502, 7052, 7250, 7520, 7025

2. 8731, 3645, 4832, 3265, 1985

3. 3001, 3100, 3101, 3111, 3003

XVI Arrange in ascending order

1. 1952, 1529, 1925, 1592

2. 6803, 6308, 6830, 6008

3. 4125, 4521, 4152, 4512

4. 7309, 7903, 7930, 9730

5. 5015, 5510, 5550, 5115

XVI Arrange in descending order

1. 2861, 2802, 2820, 2028

2. 8092, 9082, 9092, 8082

3. 9887, 7789, 7897, 9888

4. 6125, 6521, 6152, 6512

XVII Write the greatest and smallest 4 digit number by using the given digits.

    Digits              Greatest number          Smallest number
1. 7, 1, 6, 5
2. 5, 3, 0, 9
3. 6, 0, 1, 5
4. 9, 3, 8, 4
5. 5, 6, 0, 7
6. 4, 5, 7, 3
7. 6, 8, 0, 4

Q-1) WRITE THE NUMBER NAMES FOR THE FOLLOWING.

9087 _________________________

7220 ________________________

803 ________________________

4404 ______________________

Q-2) MAKE FOUR DIGIT NUMBERS USING FOLLOWING DIGITS.

7, 8, 4, 3 ____________ ____________ ____________ ____________

2, 0, 4, 1 ____________ ____________ ____________ ____________

Q-3) COMPARE THE NUMBERS AND PUT THE SIGN <, > or =

4007 ____________ 4070                  3506 ____________ 3056

909 + 100 ____________ 1000          1000-50 ____________ 910

3000-1 ____________ 3010                403 ____________ 304

6500____________ 500+6000            7000-1 ____________6999

Q-4) WRITE THE PLACE VALUE OF THE ENCIRCLED DIGITS.

6 0 4 _______________ 2 7 6 5 _______________

3 5 7 8 ________________ 4 0 0 2 _______________

Q-5) ARRANGE FOLLOWING NUMBERS IN ASCENDING ORDER.

a) 5046, 8219, 1309, 4000, 7090

______________________________________________________________

b) 2030, 2003, 2300, 2303, 2000

________________________________________

Q-6) PUT THE FOLLOWING NUMBERS IN THE CORRECT PLACE.

1000 , 5131, 602 , 723 , 2888 , 504 , 329 , 107, 4006 , 6333

ODD _________, __________ , _________ , _________, ___________

EVEN _________, __________ , _________ , _________, ___________

Q-7) ARRANGE THE FOLLOWING NUMBERS IN DESCENDING ORDER.

a) 2222 ,6666 ,6686 ,2202 ,3225
________________________________________________________________

b) 5789, 6754, 7760, 8734, 6543
________________________________________________________________

Q-8) WRITE PREDECESSORS AND SUCCESSORS OF THE NUMBERS GIVEN .

Q-9) EXPAND THE NUMBERS.

3821 = ______________+_____________+____________+______________

1609 = _____________+______________+_____________+_____________

5117 = ______________+______________+_______________+____________

4956 = ______________+________________+__________________+_____________

Q-10) Write any five four-digit numbers and arrange in Ascending- Descending order

Ascending order
_______________________________

Descending Order
______________________

Q-1:-Round off the following numbers.

a) To the nearest tens:-
(i) 76 ___________
(ii) 345 __________

b) To the nearest hundreds:-
(i) 768 ___________
(ii) 654 ___________

c) To the nearest thousands:-
(i) 6754 ____________
(ii) 5432 ____________

Q-2:-Write the addition problem vertically and find the sum.
a) 5674 + 4537
b) 7865 + 6785

Q-3:-Subtract the following numbers.
a) 5634 - 3677
b) 6432 - 4659

Q-4:-Find the missing digits in following problems.
a) 7854 + 4530 = 1_3_4
b) 8654 - 3678 = _9_6

Q-5:-The table shows the production of plastic bottles in a week, in a factory. Answer the questions that follow.

a) Find the total number of production of plastic bottles-
(i) Monday and Friday
(ii) Wednesday and Saturday

b) How many more plastic bottles were produced on-
(i) Wednesday than Friday
(ii) Saturday than Tuesday

c) Which day of the week has maximum production? ______________________

Q-6:-Solve the following word problems:

a) Out of 3467 books in a library.2478 were lent out. How many books are still in the library?
_________________________________________________
 

b) There are 4567 red apples and 5360 green apples in a shop. How many apples are there in the shop?
_________________________________________________
 

c) A garden has 5749 mango and 7653 jamun trees. How many trees are there in the garden?
_________________________________________________
 

d) There are 5470 seats in a cinema hall .One day 2375 seats were found vacant in a show. How many people saw the movie in that show?
_________________________________________________
 

Q-1:-Fill in the blanks:

a) 540+700= _____________

b) 6980-0= ______________

c) 678+0= _______________

d) 3450+200= ____________

e) 7500+2000= ___________

f) 8 643-5000 = ____________

Q-2:-Round off the following numbers.

a) To the nearest tens

(i) 67 _________

(ii) 88 _________

b) To the nearest hundreds

(i) 673 __________

(ii) 7854 _________

c) To the nearest thousands

(i) 6789 ___________

(ii) 6754 ___________

Q-3:-Add the following numbers.

a) 5643+7896

b) 7654+6509

c) 7684+2577

Q-4:-Subtract the following numbers.

a) 9876-6788

b) 6752-5889

c) 7850-5432

d) 4562-2679

Q-5:-The table given below shows the number of bulbs produced in different factories in a day. Answer the questions that follow.

a) Find the total production of-
(i) Factory1 and factory4
(ii) Factory3and factory2

b) How many more bulbs produced by
(iii) Factory4 than factory2
(iv) Factory1 than factory2

Q-6:-Solve the following word problems.

a) A school library has 7685 English books and 5430 Hindi books. How many books are there in the library?
___________________________________________________
 

b) There are 5125 students in the school. If the number of boys is 3809, Find the number of girls?
___________________________________________________
 

c) There are 4089 bags of wheat and 1896 bags of sugar in a store. Find the total number of bags in the store?
___________________________________________________
 

Fill in the blanks

• 10 x 10 = _____.

• 3 x ___ = 3

• ________ x 3429 = 3429

• 9 x ___________= 9000

• 30 x 100 = _________

• 9 x 60 = __________

• 12 x 70 = __________

• 11 x 20 = __________

• 16 x ________= 1600

• 24 x 100 = _________

II ) Write true or false.

1. The answer in multiplication is called the sum. - _______________

2. when anumber is multiplied by 0, the answer is always 0.________

V) Word Problems

1. Raju bought 36 packets of biscuits. He gave 12 packets to his friend. How many biscuits are left?

2. There are 285 sweets in a tin. Rohit and his friends ate 25 sweet. How many sweets are there in tin

Topic: Subtraction and multiplication

Q.1 Raj has 1508 stamps . He gave 247 stamps to Rekha. How many stamps does Raj have left?

Q.2 In a garden there are 4500 red and white roses. If there are 2567 white roses , how many red roses are there in the garden.

Q.3 Find the product -

a) 705 x 2 = b) 1034 x 40

Q.4 Solve the following -

a) 1250 - 500 =

b) 308 x 8 =

c) 140 x 100 =

d) 705 – 204 =

Q.5 Tick the correct answer -

1.) 42 – 42 =

a) 0 b) 1

2.) 16 – 0 =

a) 1 b) 16 c) 0

Q1) Simplify :

a) 9110 + 3808 – 6087

b) 3672 + 2224 – 3085 .

c) 4238 + 1569 – 1011

d) 6347 + 6113 – 8101

e) 2456 – 1779 + 1893

f) 4235 – 2112 + 3471 – 1123

g) 5622 – 1694 + 2151— 1112

h) 1215 +5161 – 3010 – 1570

i) 3768 + 1697 – 1115 –1010

j) 3000 – 1876 – 3111 + 2453

k) Subtract the sum of 3654 and 1065 from 7895

l) Subtract the difference of 3654 and 1065 from 7895

Q.1 Diya is reading a book which has 128 pages. She has read 109 pages. How many pages are left for her to read?

Q.2 Solve

a) 1437 - 1398

b) 2365 x 600

c) 4617 - 2910

Q.3 subtract 732 from 846 .

Q.4 write in column and find the difference

a) 7944 -1004

b) 5662 - 1531

MULTIPLY THE FOLLOWING BY ARRANGING THE NUMBERS IN COLUMN:

4526 X 20=

4590 X 5 =

4020 X 70 =

456 X 40 =

1. Add each of the following numbers:

a) Th  H  T  O              b) Th  H   T  O
     3   9   1  7                    4   3   7   5
+  4    0  7   2                 + 1   9   4   8

2. Fill in the blanks:

a) 6420 + 1195 = _________ + 6420

b) 1493 + ________ = 8566 + 1493

c) 232 + 99 + 7463 = 99 + 7463 + _________

d) 607 + 3972 + 455 = ________ + 607 + 455

3. Add numbers that end with zero:

a) 598 + 0 = __________

b) 1669 + 10 = __________

c) 4773 + 1000 = __________

d) 9251 + 100 = __________

4. Find the difference in each of the following:

a) Th  H  T  O             b) Th  H  T  O
     4   6  2   9                   7   9   8  7
    -2  3   0   8                - 5   2   4   6

5. Regroup and fill in the blanks:

a) 5 thousands 4 hundreds = _________ thousands 14 hundreds

b) 2 tens 6 ones = 1 ten ________ 16 ones

c) 7 hundreds 3 tens 8 ones = ________ hundreds 12 tens _______ ones

6. Tick the correct options:

a) The result of subtraction is called –
(i) sum
(ii) difference
(iii) answer
(iv) none of these

b) The missing addend in 400 + _________ = 1000
(i) 400
(ii) 500
(iii) 600
(iv) 1000

c) 789 is _______ less than 1600.
(i) 211
(ii) 512
(iii) 781
(iv) 811

7. Subtract the numbers with regrouping:

a) Th  H  T  O            b) Th  H  T  O
     6   7  1   3                  8   4   8  4
    -2   9  0   8                - 6   5  2   7

8. For each of the following addition facts, write two subtraction facts:

a) 4361 + 2837 = 7198
____________________________ , ______________________________

b) 369 + 578 = 947
____________________________ , ______________________________

9. Find the difference:

a) 70 – 10 = ___________

b) 300 – 100 = ___________

c) 8000 – 3000 = ___________

10. Add each of the following:

a) 600 + 200 = ___________

b) 429 + 300 = ___________

c) 743 + 500 = ___________

I. Write “True” if the statement is correct and “False” if the statement is incorrect.

Ans-

7.C

Part I

1. Fill in the blanks.

a. 5+8=_____________ f. 9-0=_____________

b. 55+0=____________ g. 9087-1=__________

c. 678-678=_________ h. 2341+1=_________

d. 6574-1=_________ i. 10+10=_________

e. 18-4=___________ j. 99+1= __________

2. Round the following numbers to the nearest tens.

a. 8976=___________ f. 981=____________

b. 3409=___________ g. 5663=___________

c. 2322=___________ h. 2367=___________

d. 87=_____________ i. 348=____________

e. 4810=___________ j. 5575=___________

3. Round the following numbers to the nearest thousand.

a. 78629=___________ e. 8222=___________

b. 60910=___________ f. 4534=___________

c. 2345=____________ g. 8600=___________

d. 1793=____________ h. 5082=___________

4. Do as directed.

a. Circle the smallest value

b. Circle the greatest value

c. Circle the two equal values

d. Circle the even value.

e. Circle the odd value

5. Round the following numbers to the nearest hundred.

a. 4657=____________

b. 764=_____________

c. 84933=___________

d. 3289=____________

e. 3419=____________

f. 72470=___________

Part- II

7. Solve the following.

a. Add the smallest four digit number with greatest three digit number.

b. Subtract 4653 from 9876

c. Add 4657, 912 and 540

d. What should be added to 4219 to get 6752?

e. Subtract 6830 from 9742.

f. Subtract smallest three digit number from the greatest three digit number.

8. Arrange the numbers according to the place value and then subtract

9. Solve the following number stories.

a. The number of girls in a school is 564 and number of boys is 645. What is the total strength of the school?

b. The population of a town is 56,738, out of which 35,764 are male. What is the number of females in the town?

c. Mr. Mohan has Rs.6798 in his bank account. If he withdraws Rs. 3427 from the bank, how much amount is left in his account?

Part III

10. Add the number on the spokes to the number in the centre.

Q1)     Write the number name for each of the following :

a) 23 –Twenty Three   

b) 40  - Forty 

c) 141 –One Hundred Forty One  

d) 609 – Six Hundred Nine

e)      78  - Seventy Eight  

f) 33- Thirty Three  

g) 569 – Five Hundred Sixty Nine    

h) 100 - Hundred     

i)      500 – Five Hundred  

j)  357- Three Hundred Fifty Seven                                                                      

Q2)     Using  the  given  digits, form  the  greatest  and  the  smallest four – digit numbers :-

            Digits                   Greatest Number           Smallest Number    

i)           6,7,9,1                  i)    9761                            i)     1679     

ii)          3,9,8,2                 ii)    9832                            ii)     2389

iii )        5,0,6,9                 iii)    9650                            iii)      5069          

iv)        7,8,4,2                  iv)    8742                           iv)      2478                                                                                                                        
v)          1,6,9,3                 v)     9631                           v)     1369                                                   

Q3)      Fill   in   the   gaps :                                                                                                                                                            
a)  100 =   9  tens + 10 ones . 

b)  1000 = 9  hundreds + 10 tens  

c)  1200 = 11  hundreds + 10 tens.

d)  400 =   3   hundreds + 9 tens + 10 ones .

Q4) Write the place value of the underlined digit :-  

i)  7683 = 80   

ii)   8809 = 800    

iii)  6345 = 40   

iv) 1000  = 1000  

v) 3654 = 50   

vi)   5702 = 5000 

vii)  1084 = 4     

viii) 4955 = 900    

Q5) Arrange in ascending order :-

i) 200 ,101,137 ,317 ,157 , 571. i) 101,137 ,157 ,317,200,571.

ii) 350 ,908 , 850,530 , 830,100 . ii) 100, 350 , 530 , 830, 850, 908 .

iii) 215, 763, 890, 761, 465, 980, iii) 215, 465, 761, 763, 890, 980, 

Q6) Arrange in descending order : -                                                                                                                                                               
i) 526, 265, 151 , 615, 215, 165     i) 615,526,265, 215, 165,151 .

ii) 530, 345 , 503 , 354 , 534 , 543  ii) 543 , 534 , 530, 503 , 354 , 345 .

iii) 890, 761, 65, 980, 215, 763.     iii) 980, 890, 763, 761, 215,65.  

Q7) Write each of the following in expanded form :-                                                                                               
i)  809 = 800+0+9   

ii)  453 = 400+50+3    

iii)  152 = 100+50+2 

iv) 283 = 200+80+3 

v) 765 =700+60+5        

Q8)   Look at the pattern  and fill  in the blanks :-   

a) 370 , 380,  390 , 400, 410 .

b) 934, 933,   932, 931 ,930 . 

c) 223,233,   243, 253 ,263.                                                                                                                             

A. Write the number names of the followings:

1. 1105

2. 6892

3. 9629

4.9999

5. 8458

B. Identify and write the number for each number name:

1. Six thousand seventy

2. Four thousand twenty six

3. Nine thousand two hundred forty-two

4. Five thousand five hundred fifty

C. Complete the following table:

D. Recall the counting order and write the successor and predecessor of each number

E. Write the following in standard form:

F. Express the following in the expanded form:

1. 2048 =  ___ +  ___ +  ___ +

2. 9643 = ___ +  ___ +  ___ +

3. 4008 = ___ +  ___ +  ___ +

4. 3096 = ___ +  ___ +  ___ +

G. Compare the following numbers:

1320 ___3399            8008__2009

4321___36                5342__3542

1258___2158            3465__3645

6969___3496            2694__2699

H. Arrange the followings in Ascending and Descending order:

1. 364, 6860, 9919, 7148

2. 5826, 3070, 3961, 2473

3. 5648, 6748, 5684, 6740

4. 8439, 9379, 6439, 1379

5. 1000, 1100, 1001, 1101

NOTE: DO ALL THE SOLUTION IN YOUR MATHEMATICS NOTEBOOK ALONG WITH THE QUESTIONS.

NOTE: LEARN TABLES FROM 2 TO 15.

Q1) Fill in the place holders with correct symbol < , > or =.

a) Xl < Xll b) XXV = XXV

c) L < Ll d) XlX < XXX

e) lll < Xl f) XL < L

g) C > XX h) XlV > XlV

i) LXX > LX j) XC < C

Q2) Complete the following sequences :-

a) Xl Xll Xlll XlV XV XVl XVll XVlll XlX XX.

b) XL XLl XLll XLlll XLlV XLV XLVl XLVll XLVlll XLlX .

c) LXll LXlll LXlV LXV LXVl LXVll LXVlll LXlX LXX .

d) XlX XX XXl XXll XXlll XXlV XXV XXVl XXVll XXVlll .

e) CVl CVll CVlll ClX CX CXl CXll CXlll CXlV .

Q3) Write Roman Numeral for the following :-
a) 500 - D  b) 100 - C  c) 1000 - M

Q4) Write True or False : -

i) The ‘V’ in roman numeral can be represented only once . True

ii) ln roman numeral ‘ X ’cannot be repeated more than four times . False

iii) The number which cannot be represented by roman numeral is 0 . True

iv) lXlX roman numeral is meaningless . True

Q8) How many 20-paise coins will make : (Do all the sums a-d )
a) rs 5.60 = 5 x 100 + 60
= 500 + 60
= 560 Paise .
Now no of 20-paise coins = 560/20 = 280 coins .
Ans 280 coins in rs 5-60.

Q9) How many 25-paise coins will make : (Do all the sums a-d )
a) rs 6.25 = 6 x 100 + 25
= 600 + 25
= 625 Paise .
Now no of 25-paise coins = 625/25 = 25 coins .
Ans 25 coins in rs 6-25.

Q10) How many 50-paise coins will make : (Do all the sums a-d )
a) rs7.50 = 7 x 100 + 50
= 700 + 50
= 750 Paise .
Now no of 50-paise coins = 750/50 = 15 coins .
Ans 15 coins in rs7-50.

Q11) How many 2-rupee coins will make : (Do all the sums a-d )
a) rs10.00 = rs10.00 / 2 rs
. = 5
Now no of 2-rupee coins = 5 coins .
Ans 5 coins in 2-rupees 

1. Fill in the blanks :

a ) 700 – 200 =_____________

b) 600 – 100 = _____________

c) 1000 - ___________ = 1000

d) 1250 + __________ =1251

e) What should be added to 983 to make it to 990? ______________

f) The difference between the smallest and the greatest three digit number is ____________

g) 8005 - ___________ = 7995

h) 284 - ___________ = 0

i) 8000 - ___________ = 7999

j) 3290 - ___________ = 3190

2. Which number makes this sentence true?

4000 – 200 = ____________

a )3800

b) 3790

c) 4200

d) 3820

3. Fill in the missing number:

   4   3    __   6            6    __  7    1                 __    3     __   2
- 2  __     1   5          - __   2   __   8                - 6    __    2    9 
  __  1    __   5             4    5   3    __                 1     4     3   __

4. Solve:

a. 4403 + 2857 - 3179

b. 1634 - 885 + 925

c. 5331 - 2333 + 2168

d. 1486 + 1234 - 180

5 . Find the sum of 1984 and 239 and subtract from 3000.

6 . Solve and check the answer:

a) 3964 from 4000 d) 398 from 1236

b) 1284 from 7629 e) 3914 from 4528

c) 2050 from 8934

7 . Match the following :

1) 294 - 194          a) 20

2) 1324 - 10          b) 1314

3) 1000 - 980        c) 5030

4) 5060 - 30          d) 100

Problem Solving

Q1. Subtract the difference of 1214 and 1700 from 3980.

Q2. There are 1085 mango trees and 852 apple trees in a garden. How many trees are left if 595 trees are destroyed by wind?

Q3. In a school the students planted 2515 trees in 1985 and 2876 trees in 1986. In which year did the students plant more trees and by how many?

Q4. There are 3257 cows, 4809 buffaloes and 1283 other cattle in a village. How many total cattle are there in the village?