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Example 5. Subtract and check the difference.
a. 8375 – 4359 b. 73648 – 24983

Solution. a. Th H T O Th H T O
8 3 7 5 4 0 1 6
– 4 3 5 9 + 4 3 5 9

4 0 1 6 8 3 7 5

The subtraction is correct.

b. TTh Th H T O TTh Th H T O

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

4 8 6 6 5 7 3 6 4 8

The subtraction is correct.

Exercise 2D

1. Fill in the blanks.

a. 48 – _____ = 48 b. 154 – 0 = _____ c. _____ – 0 = 2364

d. 73 – 73 = _____ e. 193 – _____ = 0 f. _____ – 2434 = 0
g. 56 – 1 = _____ h. 173 – _____ = 172 i. _____ – 1 = 3727

2. Subtract the following:

a. 8 7 6 5 b. 9 9 9 3 c. 7 1 2 9
– 3 9 4 7 – 7 6 0 9 – 5 8 7 9

d. 6 0 0 0 e. 5 4 3 6 4 f. 6 4 3 8 9

– 3 9 7 9 – 9 4 1 8 – 9 6 9 8

3. Find the difference.

a. 9 3 3 6 3 b. 9 3 6 5 4 c. 7 8 6 0 0
– 3 2 9 8 9 – 6 9 9 9 9 – 4 3 9 9 8

d. 6 7 0 3 4 e. 9 0 0 0 0 f. 6 0 0 0 0
– 4 9 9 7 8 – 3 7 6 5 4 – 1 4 9 8 9

34 Mathematics 4