Page 120 - Touchpad Mathematics V1.0 C1

D:\Working\TouchPad_Maths\TouchPad_Maths_1\Open_Files\Chap_07\Chap_07
\ 17-Nov-2025 Surender Singh Rothan Proof-7 Reader’s Sign _______________________ Date __________

4. A book contains 98 pages. Rita read T O
72 pages. How many more pages does
Rita have left to read?
–
Answer: _________________________

T O
5. Of 72 books in a shelf, 30 are picture
books. How many other books are on

the shelf? –

Answer: _________________________

Addition or SuBtrACtion

To solve a word problem, we first decide whether to add or subtract. We do

this by carefully looking at the situation in the problem. Then we solve the

problem accordingly.

Example 1. 62 people are sitting in a hall. 20 more people join them. How

many people are there in all?

Solution. Here, people are joining. When T O

things are put together, we add. 6 2

So, this is an addition problem. + 2 0

62 + 20 = 82 8 2

Thus, 82 people are there in the hall now.

Example 2. Siya had 36 ribbons. She gave 12 ribbons to Jiya. How many

ribbons are left with Siya?

Solution. Here, ribbons are being given away.
When something is given away or removed, T O

we subtract. 3 6

So, this is a subtraction problem. – 1 2
36 - 12 = 24 2 4

Thus, 24 ribbons are left with Siya.

118 Mathematics 1