# Subtraction of Decimals

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Subtraction of decimals is just like subtracting whole numbers.

Step 1 : Put the greater number on top and the smaller one below it, taking care to match the place value and keeping the decimals one below the other.

Step 2 : Convert them into like decimals.

Step 3 : Subtract as usual. Regroup if necessary.

17.5 – 16.75 = ?
 17.5 - 16.75 ---------    17.50 (like decimals) - 16.75 (like decimals) ----------    0.75

Examples on subtracting-decimals

1) 18.43 – 9.26 = ?
Solution :
 18.43 -  9.26 ---------    9.17

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2) 128.43 - 69.26 = ?
Solution :
 128.43 - 69.26 ---------    59.17

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3)
 12.35 - 4.00 ---------    8.35

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4) What should be added to 2.1 to get 10?
Solution :
 10.0 -  2.1 ---------    7.9

∴ 7.9 should be added to 2.1 to get 10.
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5) 0.9900 - 0.0998
Solution :
 8 8 9 10 0 . 9 9 0 0 - 0 . 0 9 9 8 ---------------    0 . 8 9 0 2

Practice

Q.1 Subtract the following.
1) 341.23 - 128.7
2) 89.45 - 32.12
3) 100 - 49.98
4) 45.56 - 12
5) 123 - 86.119
6) 1.2456 - 0.88
7) 34 - 0.9623
8) 456.78 - 56.9712
9) 23.67 - 9.125
10) 0.9876 - 0.598
Q.2 What should be taken away from 180 to get 125.75?
Introduction of Decimals

Expansion of decimals
Comparison of decimals
Subtraction of Decimals
Multiplication of Decimals
Division of Decimals
Conversion - decimals to fraction

From subtraction - decimals to Introduction of decimals

Number System