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

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

– 3 4 4 4 – 5 8 3 4 – 6 5 2 7

(g) Th H T O (h) Th H T O (i) Th H T O

5 0 0 0 9 0 0 0 4 0 0 0
– 3 1 2 4 – 6 4 4 8 – 1 8 9 9

(j) Th H T O (k) Th H T O (l) Th H T O

5 4 0 2 7 0 0 1 4 0 0 3

– 2 8 7 3 – 1 9 3 2 – 2 1 1 4

CHECKING SUBTRACTION BY ADDITION

Example: Subtract 4657 from 7000 and check the answer by addition.

Solution: On subtracting 4657
Th H T O Th H T O
from 7000 we get 2343.
9 9 10

6 10 10 2 3 4 3 On adding 2343 to 4657
7 0 0 0 + 4 6 5 7 we get back 7000.

– 4 6 5 7 7 0 0 0 So the subtraction is

2 3 4 3 correct.

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Subtraction
Mathematics-3