It is important to make sure digits and decimals line up when adding and subtracting numbers so as to keep the numbers in the proper place-value column.
What is a Decimal?
This is referred to a number which has the whole number and fractional part being separated by a decimal point such as 11.23.
The solution of 320.456 - 145.73
320.456
- 145.73 = 174.726
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