Page 58 - Start Up Mathematics_4

2. Find the following differences and check your answer.

(a) 45,068 – 32,126 (b) 76,182 – 49,327

(c) 2,18,753 – 95,034 (d) 3,92,005 – 2,18,672
3. Find the missing digits.

(a) TTh Th H T O (b) L TTh Th H T O

8 ? 7 ? 6 5 3 4 0 ? 8

– ? 9 ? 7 4 – ? 6 ? 1 8 4

2 2 8 7 ? 2 ? 6 ? 1 ?

4. Find the difference between 6,37,248 and 4,92,731 using the estimation method by
rounding off to the nearest 1,000. Compare the actual value and the estimated
value.

5. 2,79,846 students from various schools registered themselves for a drawing competition.
Only 1,50,375 students participated in the competition. How many students did not
participate?

6. Frame a word problem for the following. Then solve to find the answer.
(a) 3,41,642 – 43,938 = ? (b) 2,79,859 – 1,32,450 = ?

(c) 6,54,120 – 45,128 = ? (d) 7,00,563 – 5,99,000 = ?

7. Solve the following sums.
(a) 23,185 – 19,200 + 7,82,374 – 6,07,521

(b) 1,37,300 + 75,921 – 94,375

(c) 17,256 – 61,703 – 1,26,365 + 2,00,000
(d) 1,23,548 – 36,249 – 513

VALUES AND LIFE SKILLS

1. Sunita had ` 1,60,475 in her account. She purchased jewellery for ` 85,650. How much
money is left in her account? Do you think students should wear any form of jewellery
to school?
2. Amita saved her salary and collected ` 80,000 in her bank. She gave ` 32,920 to her
brother to pay his fees. How much money is she left with? Is Amita a good sister?
Justify your answer.

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