CBSE Class 3 Mathematics Revision Worksheet Set O

Q1) Write the following numbers in figures :-
i) Five Hundred Eighty Six = 586.
ii) Seven Hundred = 700 .
iii) One Hundred Fifty=150 .
iv) Nine Hundred two =902.
v) Three Hundred Twelve = 312.
vi) Eight Hundred Twenty = 820.

Q2) Counting by twos write numerals from -
a) 101 ,103,105, 107, 109,111, 113.
b) 243 , 245,247, 249, 251,253,255 .
c) 489 , 491,493, 495, 497,499, 501.

Q2) Counting by threes write numerals from -
a) 303 , 306,309,312, 315,318, 321.
b) 138 , 141,144, 147, 150,153,156 .
c) 24 , 27,30, 33, 36,39,, 42.

Q3) Write each of the following in short form:-
i) 100 + 50 + 1 = 151 .
ii) 400 + 90 + 9 = 499 .
iii) 200 + 00 + 3 = 203 .
iv) 500 + 40 + 8 = 548 .
v) 800 + 80 + 8 = 888 . .
vi) 300 + 30 + 3 = 333 .

Q4) Fill in the blanks with the given clues :- .
100, 99 , 10 , 1, 999, 9.

a) The smallest two digit number is 10.
b) The largest two digit number is 99.
c) The smallest three digit number is 100.
d) The largest three digit number is 999.
e) The largest one digit number is 9.
f) The smallest one digit number is 1.

I Who am I?

1. I have 4 sides. All sides are equal ____________.

2. I have 3 sides and 3 corners ____________.

3. I have no sides and no corners. I’m not round ____________.

4. I have 4 sides. Opposite sides are equal____________.

5. I have no sides and no corners. I am round in shape____________.

II Draw any two plane shapes and name them.

III Draw any two solid shapes and name them.

Q1) Write the Roman Numeral for the following Hindu-Arabic Numeral -
a) 51 -Ll
b) 52- Lll
c) 53- Llll
d) 54 - LlV
e) 55 - LV
f) 56 – LVl
g) 57- LVll
h) 58 - LVlll
i) 59 – LlX
j) 60 - LX
k) 61 - LXl
l) 62 - LXll
m) 63 - LXlll
n) 64 - LXlV
o) 65 - LXV
p) 66 - LXVl
q) 67 - LXVll
r) 68 - LXVlll
s) 69 - LXlX
t) 70 - LXX
u) 71 - LXXl
v) 72 - LXXll
w) 73 - LXXlll
x) 74 - LXXlV
y) 75 - LXXV
z) 76 - LXXVl

A) 77- LXXVll
B) 78- LXXVlll
C) 79- LXXlX
D) 80 - LXXX
E) 81- LXXXl
F) 82- LXXXll
G) 83 - LXXXlll
H) 84 - LXXXlV
l) 85 - LXXXV
J) 86- LXXXVl
K) 87 - LXXXVll
L) 88 - LXXXVlll
M) 89 - LXXXlX
N) 90 - XC
O) 91 - XCl
P) 92 - XCll
Q) 93 - XClll
R) 94 - XClV
S) 95 - XCV
T) 96 - XCVl
U) 97 - XCVll
V) 98 - XCVlll W) 99 - XClX
X) 100 - C
Y) 101 - Cl
Z) 102- Cll

a) 103- Clll
b) 104 - ClV
c ) 105 - CV
d ) 106 - CVl
e ) 107- CVll
f ) 108 - CVlll
g ) 109 - ClX
h ) 110 - CX
i ) 111 - CXl
j ) 112 - CXll
k) 113 - CXlll
l ) 114 - CXlV
m) 115 - CXV
n ) 116 - CXVl
o ) 117 - CXVll
p) 118 - CXVlll
q) 119 - CXlX
r ) 120 - CXX
s) 121 - CXXl
t ) 122 - CXXll
u ) 123 - CXXlll
v) 124 - CXXlV
w) 125 - CXXV

QI. Comparison of numbers:

Insert the appropriate sign <, > or =

a) 623______ 632.

b) 846 ________ 863

c) 199 ________ 200-1

d) 285+191 ________ 191+270+20

e) 16x3 _________48x1

f) 385 __________ 38 tens

g) 480+30+3 _________ 500+10+8

h) 9+9+9+9+9 _________ 9x5

i) One less than 698 ________ one more than 696

j) 8 hundreds __________ 86 tens

k) 900+70+6 __________ 950+10+8

l) 6 hundreds + 4 tens + 3 ones _________ 6043

m) 7x(5+5) _________ 70

n) 280+14 _________ 304

QII. Fill in the boxes:

1. How many days are in a week? ____________

2. How many days are in a non-leap year? ____________

3. How many days are in a leap year? ____________

4. How many weeks are in a month? ____________

5. How many months are in a year? ____________

6. How many days are in a month of January? ____________ 

7. How many days are in a month of September? ____________

8. How many days are in a month of December? ____________ 

9. How many days are in a month of July? ____________

10. The last month of the year. ____________

11. The first day of the week. ____________

12. The fourth day of the week. ____________

13. The seventh month of the year. ____________

14. The second month of the year. ____________

15. The fifth month of the year. ____________

Ex -31

13 ) Solution -
No of Bicycles - 7
Cost of 7 Bicycles -rs 6041
Cost of 1 Bicycle = rs 6041 / 7 = 863 rs ( solve it like division method )
Ans Cost of 1 Bicycle is 863 rs .

15) Solution -
Product of two numbers -- 7304 .
one of the number -- 8 . other number -- 7304 / 8 = 913 . ( solve it like division method )
Ans other number is 913 .

Ex -33

* One Word Problem on one page .
* Copy down the sum no 2, 4,6, 8, 10 in maths note book .

2 ) Solution –
No of pencils in one bundle -- 12
No of pencils -- 100
No of bundles formed -- 100 /12 = 8 ( solve it like division method )
No of pencils left -- 4 (remainder )
Ans No of bundles formed are 8 and No of pencils left are 4 .

4 ) Solution –
No of girls sit on one bench -- 6
No of girls -- 45
No of benches required -- 45 /6 = 7,3is remainder (solve it like division method )
Ans No of benches required is 7 .

6 ) Solution –
No of days in a week -- 7
No of days in a year -- 365
No of weeks in a year -- 365 / 7= 52, remainder -1. (solve it like division method )
Ans No of weeks in a year 52. No of days left is 1 .

8 ) Solution –
No of note books each students get – 9 .
No of note books – 1272 .
No of students to get note books -- 1272 /9 = 141,remainder -3
(solve it like division method )
Ans No of students to get note books is 141,and 3 note books are left .

10 ) Solution –
No of bulbs -- 4764
No of cartons -- 7
No of bulbs in each cartons -- 4764 / 7 = 680, remainder – 4 .
(solve it like division method )
Ans No of bulbs in each cartons is 680 and 4 bulbs are left .

1. Rakesh, a pilot flew his aeroplane 1500 km from Delhi to Pune. He flew it back from Pune to Delhi covering the same distance. How many kilometer did he fly?

2. There were 6530 birds in the zoo park. This winter 3760 birds came from other places. How many birds are there in all?

3. From Charlie’s chocolate factory, 5688 chocolate boxes were loaded in the first van, 5260 in the second van and 4000 in the third. How many chocolate boxes were loaded in all?

4. There were 5401 fish in a pond. 4200 more were put in. How many fish are there in pond now?

5. A mason put 2358 bricks to build a wall. He completed the wall by putting 1352 more bricks the next day. How many bricks were put in all?

Seven Basic Symbols to write any Roman Numeral.
They are as follows :-
Roman Numeral -           l V X L C D M
Hindu-Arabic Numeral- 1 5 10 50 100 500 1000

Rules of Roman Numeral -

Rule -1 Repetition of Roman Numeral means addition –
Examples :-  a) ll = l + l = 2 , b) lll = l + l + l = 3 .
c) XX = 10+10 =20 , d) XXX = 10+10+10 =30 .
Now, important thing is that -
i) Only l and X can be repeated in Roman Numeral. The numeral ‘V’ is never repeated .
ii) No numeral can be repeated more than three times .

Rule -2 A smaller numeral written to the right of a large numeral is always added to the larger numeral . 
Examples :- a) Vl=5+1= 6   b) Xl = 10 + 1 =11

Rule -3 A smaller numeral written to the left of a larger numeral is always subtracted from the larger numeral .
Examples :- a) lV=5 – 1 = 4  b) lX = 10 – 1 = 9

Rule -4 For numbers beyond 10, we first write the numbers in groups of 10s and 1s and then form the Roman Numeral corresponding to the given number
Examples :- a) 11=10+1=Xl   b) 20 = 10+10= XX 
To Write 40 in Roman Numeral - 40 = XL Since X cannot be repeated more 
than three times, We cannot write 40 as XXXX .

* Copy down the Question and then solve it .
* Do neat and clean work in Maths Note book.

Exercise -5

Q1 a) 6 = Vl    e) 26 = XXVl    i) 38 = XXXVlll

Do all the parts in Note book
Q2a) lX = 9    e) XXXVl = 36   h) XXlX = 29

Do all the parts in Note book

Q5 a) Xl +Xl = 11 + 11 = 22 = XXll.  Ans- XXll
f) XXX – XXl = 30 – 21 = 9 = lX .     Ans- lX

Do all the parts in Note book