Adding and Subtracting Decimals

Front

What is a decimal?

Back

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.

Front

How do you add decimals?

Back

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

Front

How do you subtract decimals?

Back

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

Front

What is the value of 0.1 in fractions?

Back

0.1 is equivalent to 1/10 in fractions.

Front

What is the value of 0.25 in fractions?

Back

0.25 is equivalent to 1/4 in fractions.

Front

Calculate: 42.1 - 6.9

Back

35.2

Front

Calculate: 39.9 + 11.67

Back

51.57

Front

Calculate: 132.5 - 45.3

Back

87.2

Front

Calculate: 102 - 50.5

Back

51.5

Front

Calculate: 168 + 45.2

Back

213.2