Decimal Subtraction: Basic

Basic subtraction of decimals is similar to subtraction of whole numbers without borrowing.

First the decimals are written in such a way that digits with same place values are vertically apgned.

We then add zeros to the right of decimal numbers where ever necessary so that all numbers have the same number of digits after the decimal point.

We begin with the rightmost column and start subtracting the digits. Then we keep moving to the left till all columns are subtracted.

Subtract 38.48 − 16.3

Solution

Step 1

The decimals are apgned as shown. A zero is added to the right of 16.3 as the maximum number of decimal places is 2.

Step 2

We start with the right most column. Subtract 8 − 0 = 8; then moving to left column 4 − 3 = 1; again moving left 8 − 6 = 2; next 3 − 1 = 2;

Step 3

So the difference of the decimals is 12.18

Subtract 29.58 − 16.46

Solution

Step 1

The decimals are apgned as shown.

Step 2

We start with the right most column. Subtract 8 − 6 = 2; then moving to left column 5 − 4 = 1; again moving left 9 − 6 = 3; next 2 − 1 = 1;

Step 3

So the difference of the decimals is 13.12