Subtracting tenths is very similar to subtracting whole numbers. It is important to line up the numbers by the correct place value.
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.5 |
Five tenths - |
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.3 |
Three tenths |
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.2 |
Two tenths |
1.0 |
One whole (which equals ten tenths) minus |
10
|
-.3 |
Three tenths |
3
|
.7 |
|
7
|
Notice that the whole number one is written as 1.0 so that the numbers can be lined up to be subtracted more easily.
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