Adding & Subtracting Decimals Word Problems

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, 3.14 is a decimal.

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

The total weight is 133.61 grams.

Marcel spent $40.94 in total.

Scott has $8.76 left.

Josh has $1.25 left.

The sum is 26.7 minutes.

Rounding helps simplify numbers to make calculations easier and to express answers in a more manageable form.

A whole number is a number without fractions or decimals, while a decimal includes a decimal point and represents a part of a whole.