Page 143 - New Medley 4 Semester 1

EXERCISE 2.9

A. Simplify:
1. 72176 + 25220 – 41742 2. 54144 – 24280 + 42921

3. 377657 + 374440 – 422148 4. 40458 – 21404 + 37816

5. 44477 + 46295 – 39429 6. 412874 + 261742 – 640741

B. Word Problems:

1. A reservoir had 57892 litres of water. 37941 litres more of water was
added to the reservoir. Now 58675 litres of water was released. How

many litres of water does the reservoir has stored in it now?
2. Mr. George had `58967 in his bank account. He withdrew `27852 in
morning and deposited `37821 in evening. What is his balance?

3. 376852 bags of wheat were stored in godown. A supply of 247725 bags

more was received. Later 562854 bags were supplied to ration shops.
How many bags are stored in the godown now?

4. 45241 barrels of oil was loaded on a oil-tanker at a sea port. 32842
barrels more was loaded on the second port. It delivered 52874 barrels
on the third port. How many barrels are stored in the oil-tanker now?

PUZZLE • Critical Thinking

Magic Mind-Reader

Ask your friend to think of a number from 1 to 63. Then, ask him to tell in
which of these six tables has his/her number. Now, try to find the number.

A B C

1 17 33 49 2 18 34 50 4 20 36 52
3 19 35 51 3 19 35 51 5 21 37 53

5 21 37 53 6 22 38 54 6 22 38 54
7 23 39 55 7 23 39 55 7 23 39 55

9 25 41 59 10 26 42 58 12 28 44 60
11 27 43 57 11 27 43 59 13 29 45 61

13 29 45 61 14 30 46 62 14 30 46 62
15 31 47 63 15 31 47 63 15 31 47 63

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