Page 51 - Start Up Mathematics_4

Checking

TTh Th H T O
1 4 1 7 1 8 5 2 ← Difference

+ 3 7 2 5 4 ← Subtrahend

8 5 1 0 6 ← Minuend

Example 11: Subtract 4,25,178 from 7,60,085 and check your answer.

Solution: L TTh Th H T O

9
5 10 10 7 15
7 6 0 0 8 5 ← Minuend
– 4 2 5 1 7 8 ← Subtrahend

3 3 4 9 0 7 ← Difference

Checking
L TTh Th H T O

3 1 3 1 4 9 1 0 7 ← Difference

+ 4 2 5 1 7 8 ← Subtrahend

7 6 0 0 8 5 ← Minuend

Finding the Missing Digits

Let’s learn how to find missing digits in a problem on subtraction, with the help of an
example.

Example 12: Find the missing digits.

TTh Th H T O Remember
5 ? 6 ? 2 To find the missing digits,

– ? 5 ? 4 1 always start from ones and
then move towards left.
3 2 3 4 ?

Solution: TTh Th H T O
5 ? 6 ? 2 Step 1: Subtract the ones to get the missing
digit of the difference.
– ? 5 ? 4 1
2 – 1 = 1
3 2 3 4 ?

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