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 Decimals Subtraction To subtract decimals, follow these steps: Write down the two numbers, one under the other, with the decimal points lined up. Add zeros so the numbers have the same length. Then subtract normally, remembering to put the decimal point in the answer. Subtract 24.5 from 1.29 Line the decimals up, "pad" with zeros and subtract: Calculate: $\;7.7\;-\;6\;=$