Page 45 - Math Genius C4

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\\September 30, 2025 9:38 AM Bharat Arora P-9 Reader _________________________ Date: ___________________74

example 7: The sum of two numbers
is 98,076. If one of the numbers is Challenge Question

10,325, find the other one. Find the mistake in the following sum:
Solution: To get the required number, 6 0 3 4 Logical Thinking

we subtract 10,325 from – 2 7 8 9
3 3 5 5
98,076 and then check the

answer.

tth th H T O tth th H T O

7 10 1
9 8 0 7 6 Checking 1 0 3 2 5

– 1 0 3 2 5 + 8 7 7 5 1
8 7 7 5 1 9 8 0 7 6

Thus, the other number is 87,751.

Practice time 2d

1. Subtract the following.
(a) tth th H T O (b) tth th H T O (c) tth th H T O

5 3 7 5 3 6 7 3 9 5 8 2 6 3 4

– 3 0 4 2 2 – 3 6 1 0 3 – 4 5 6 2 7

(d) tth th H T O (e) tth th H T O (f) L tth th H T O

5 8 3 4 0 7 0 0 0 0 4 0 0 0 0 0
– 2 3 0 6 8 – 5 2 5 4 3 – 1 3 6 1 3 3

2. Find the difference.

(a) 68654 and 56433 (b) 759638 and 523427

(c) 865709 and 224310 (d) 500000 and 335213

3. Arrange the numbers in columns and then subtract. Also, check the answer.

(a) 884932 – 443521 (b) 895942 – 762432

(c) 795621 – 532411 (d) 900000 – 843254

4. What should be added to 37,214 to get 97,364?
5. What should be subtracted from 1,65,342 to get 89,327?

6. How much is 14,952 less than 93,570?

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