Page 52 - Revised Maths Wisdom Class - 3

50 MATHS

Exercise 4C

1 Subtract.

(a) Th H T O (b) Th H T O (c) Th H T O

5 0 9 4 6 8 5 1 7 0 1 3

– 2 4 7 3 – 3 6 4 9 – 4 3 1 8

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(d) Th H T O (e) Th H T O (f) Th H T O

8 2 0 5 5 6 4 3 9 0 0 0

– 5 1 6 7 – 1 9 8 2 – 6 8 7 6

2 Find the diff erence and check your answer.

(a) 6700 – 2194 (b) 8264 – 1297 (c) 2031 – 1495

3 Find the diff erence of the following and check the answers using addition.

(a) 3041 and 1348 (b) 9264 and 7841 (c) 7000 and 1699

(d) 2379 and 4193 (e) 2103 and 1849 (f) 7015 and 3786

Word Problemsord Problems
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Example 1: A school library had 3125 books. If there are 1178 books still left in the
library, how many books were issued?
Th H T O
Solution: Total number of books = 3125 2 10 11 15

Number of books left = 1178 – 3 1 2 5

Number of books issued = 3125 – 1178 1 1 7 8
4
7
9
1
Hence, 1947 books were issued.