Adding and subtracting decimals

Front

What is the sum of 10.9 hours, 8.6 hours, and 12.4 hours?

Back

31.9 hours

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

What does the 5 in the decimal .257 represent?

Back

five hundredths

Front

How much candy did Tom and his brother get if Tom received 8.30 kg and his brother received 1.8 kg?

Back

10.1 kg

Front

If a computer programmer has two files totaling 93 gigabytes and one file is 50.30 gigabytes, how big is the second file?

Back

42.7 Gb

Front

What is the process of adding decimals called?

Back

Decimal Addition

Front

What is the process of subtracting decimals called?

Back

Decimal Subtraction

Front

How do you align decimals when adding or subtracting?

Back

Line up the decimal points vertically.

Front

What is the value of 0.5 in terms of tenths?

Back

five tenths

Front

What is the value of 0.25 in terms of hundredths?

Back

twenty-five hundredths