CBSE Class 2 Mathematics Revision Assignment Set 05

Q1. Fill in the boxes.
a) \(9 - 9 = 0\)
b) \(68 - 67 = 1\)
c) \(22 + 0 = 22\)
d) \(46 + 0 = 46\)
e) \(14 + 17 = 17 + 14\)
f) \(8 + (14 + 12) = (8 + 14) + 12\)
Answer: Filled values are: (a) 0, (b) 67, (c) 22, (d) 0, (e) 17, (f) 14.
In simple words: We used basic properties of addition and subtraction such as zero property and commutative property.

Exam Tip: Remember that any number minus itself is 0, and adding 0 to any number gives the number itself.

Q2. Write the numbers in expanded form:
a) \(902 = 900 + 0 + 2\)
b) \(888 = 800 + 80 + 8\)
c) \(231 = 200 + 30 + 1\)
d) \(990 = 900 + 90 + 0\)
Answer:
a) 900 + 0 + 2
b) 800 + 80 + 8
c) 200 + 30 + 1
d) 900 + 90 + 0
In simple words: Expanded form means breaking a number into hundreds, tens, and ones.

Exam Tip: Always identify the place value of each digit from left to right (Hundreds, Tens, Ones).

Q3. Write the place and place value of the underlined digits:
a) \(6\underline{7}4\) = Place: Tens, Place value: 70
b) \(2\underline{9}0\) = Place: Tens, Place value: 90
c) \(66\underline{6}\) = Place: Ones, Place value: 6
Answer:
a) Place: Tens, Place value: 70
b) Place: Tens, Place value: 90
c) Place: Ones, Place value: 6
In simple words: Place tells the position (Ones, Tens, Hundreds), and place value tells the value of that digit based on its position.

Q4. Write the following numbers in ascending order:
982, 462, 233, 888, 672, 302
Answer: 233, 302, 462, 672, 888, 982
In simple words: Ascending order means arranging numbers from the smallest to the largest.
Exam Tip: Compare the hundreds digit first. If hundreds are equal, compare the tens digit.

Q5. Write the following numbers in descending order:
567, 402, 971, 321, 844, 662
Answer: 971, 844, 662, 567, 402, 321
In simple words: Descending order means arranging numbers from the largest to the smallest.

Exam Tip: Look for the largest hundreds digit first when ordering numbers downwards.

Q6. Subtract by using the number line:

Answer:
Subtract Ones: \(9 - 3 = 6\)
Subtract Tens: \(6 - 5 = 1\)
Result = 16
In simple words: Subtract the ones column first, then subtract the tens column.
Exam Tip: Always start subtraction from the rightmost column (Ones place).

Q7. Find the sum:
a) \(98 + 28\)
b) \(79 + 73\)
c) \(47 + 47\)
Answer:
a) \(98 + 28 = 126\)
b) \(79 + 73 = 152\)
c) \(47 + 47 = 94\)
In simple words: Add the ones digits first, carry over if the sum is 10 or more, then add the tens digits.

Exam Tip: Be careful with carrying over numbers to the next column.

Q8. Find the difference:
a) \(61 - 33\)
b) \(94 - 48\)
c) \(73 - 25\)
Answer:
a) \(61 - 33 = 28\)
b) \(94 - 48 = 46\)
c) \(73 - 25 = 48\)
In simple words: Borrow from the tens column when the top ones digit is smaller than the bottom ones digit.

Exam Tip: Always check if you need to borrow before subtracting the ones place.

Q9. Mutailah has 33 candies and her friend Sabira has 48 candies. How many candies do they have together?
Answer:
Candies Mutailah has = 33
Candies Sabira has = 48
Total candies = \(33 + 48 = 81\)
Ans. 81 candies.
In simple words: To find the total, we add both quantities together.

Exam Tip: Keywords like "together" or "total" always mean you need to add.

Q10. A fruit seller had 88 apples. He sold 49 apples in a day. How many apples are left with him now?
Answer:
Total apples = 88
Apples sold = 49
Apples left = \(88 - 49 = 39\)
Ans. 39 apples.
In simple words: To find out how many are left, we subtract the sold amount from the total.

Exam Tip: Keywords like "left" or "remaining" indicate subtraction.

Q11. Add by using the number line:
 

Answer:
Add Ones: \(3 + 4 = 7\)
Add Tens: \(2 + 5 = 7\)
Result = 77
In simple words: Add the ones digits together and the tens digits together.

Exam Tip: Line up the numbers properly by their place values before adding.

Q1. Fill in the blanks-

a. In the number 278 place value of 8 is ___8_____ .

b. Abacus is also known as ___chineese___ calculator .

c. In the number 345 face value of 4 is ____4____.

d. Face value of any digit is the __number______ itself.

e. In the number 896 ,9 is at __tens_______ place

f. The largest 3 digit number is __999_______ .

g. The smallest 3 digit number is _100_____ .

h. In the number 908 ,the digit at hundred’s place is ___9____ .

Q2. Circle the biggest number in the following-:

a. 243 , 298 , 186 , 300 , 101

b. 414 ,441 , 404 ,500 , 611

c. 702 ,209 ,999 , 111, 567

d. 111,181,811,118,108

Q3.Cross the smallest numberin the following-:

a. 111, 909 ,101, 505

b. 216 , 612, 900, 888

c. 515 ,551,115,551

d. 713, 699 ,731,996

Please click the link below to download CBSE Class 2 Mathematics Revision Assignment Set E