Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a number that has a whole part and a fractional part, separated by a decimal point. For example, 3.5 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 sum 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 difference directly below the other decimal points.

Front

What is the value of 0.1 in tenths?

Back

0.1 represents one-tenth of a whole.

Front

What is the value of 0.01 in hundredths?

Back

0.01 represents one-hundredth of a whole.

Front

Calculate: 7.05 - 4.6

Back

2.45

Front

Calculate: 94 - 4.8

Back

89.2

Front

Calculate the sum: 3.35 + 1.4 + 3.65

Back

8.4

Front

If Paige grew 4.62 cm in the first year and 7.7 cm in the second year, how much did she grow altogether?

Back

12.32 cm

Front

Calculate: 55.78 + 4.6

Back

60.38