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8.1 + – decimals

8.1 + – decimals


When adding and subtracting decimals, the main thing to note is the position of the decimal point. You can add them on top of each other, ensuring the decimal point occurs in the same position vertically downwards.

For example 1.2+2.3=3.5

However, 0.12+2.3=2.42

In the further alternative, 0.12+23=23.12