Page 73 - Revised Maths Wisdom Class - 2

Addition and Subtraction of 3-Digit Numbers 71

Subtract the following.

H T O H T O H T O H T O H T O

2 5 4 4 1 5 2 7 6 9 7 4 3 6 8
– 6 3 – 2 3 4 – 8 3 – 6 8 3 – 1 7 7

H T O H T O H T O H T O H T O

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

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

Borrowing from Tens and Hundreds H T O

Let us subtract 368 from 654 4 14

Step 1: Check the ones digits. 4 < 8, so we borrow 1 ten 6 5 4
from 5 tens. – 3 6 8
1 ten = 10 ones. 10 ones + 4 ones = 14 6

Step 2: Change the tens digit from 5 to 4.
Step 3: Subtract the ones digits. H T O

14 – 8 = 6
Write 6 in ones column. 5 14 14
6 5 4
Step 4: Now, check the tens digits. 4 < 6, so we borrow – 3 6 8

1 hundred from 6 hundreds, 1 hundred = 10 tens. 8 6
10 tens + 4 tens = 14 tens

Step 5: Change the hundreds digit from 6 to 5.

Step 6: Now, subtract the tens digits. H T O

14 – 6 = 8 5 14 14
Write 8 in tens column. 6 5 4

Step 7: Subtract the hundreds digits. – 3 6 8

5 – 3 = 2 2 8 6
Write 2 in hundreds column.