Page 40 - Start Up Mathematics_4

(e) For a family function, Mr Malik spent ` 2,75,600 on food, ` 1,25,750 on arrangements
and decoration and ` 96,275 on gifts. How much did Mr Malik spend for the
function?

(f) Consider a 6-digit number 7,99,835. If you increase it by 35,768, what will be the
new 6-digit number?
4. Estimate the sum by rounding off to the nearest 1,000. Then, check the result by
finding the actual sum.

(a) There are 1,23,465 red roses, 1,10,250 white roses and 96,752 pink roses in a garden.
Estimate the total number of roses in the garden.
(b) The population of village A is 53,628 and village B is 78,426. Estimate the total
population of the two villages.

5. Frame two word problems for the following sums. Then solve to find the answer.
(a) 37,260 + 28,450 = ? (b) 1,23,000 + 2,75,000 = ?

(c) 65,190 + 1,20,075 = ? (d) 75,364 + 82,915 = ?

LET’S EVALUATE

1. Find the sum.
(a) 2,68,754 + 1,37,972 (b) 4,07,682 + 2,58,196 (c) 7,53,432 + 3,09,758

(d) 3,92,854 + 2,75,694 + 1,57,346 (e) 4,76,199 + 2,87,438 + 2,54,759
(f) 6,08,027 + 3,92,568 + 2,87,115 (g) 8,34,567 + 9,305 + 25,009

2. Mr Bhatia had ` 3,70,495 in his account. He deposited ` 1,52,600 more on Monday and
` 2,64,750 on Friday. How much money is there in his account now?
3. Find the missing digits.

(a) L TTh Th H T O (b) L TTh Th H T O
4 ? 7 ? 9 3 4 5 2 ? 8 9

2 8 ? 4 ? 6 ? ? 0 2 1 ?

+ ? 1 9 2 3 ? + 3 ? 5 3 4

8 7 1 9 5 3 5 9 9 4 ? 7

4. Estimate the sum by rounding off to the nearest 100. Then check the result by finding
the actual sum.

(a) 46,316 + 3,17,956 (b) 4,21,832 + 5,36,122 (c) 7,29,818 + 64,481

5. Find the sum of the largest 6-digit, 5-digit, 4-digit and 3-digit numbers.

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