Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a dot (decimal point) separating the whole number from the fractional part.

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 0.6 in hundredths?

Back

0.6 is equal to 60 hundredths.

Front

What is the sum of 55.78 and 4.6?

Back

The sum of 55.78 and 4.6 is 60.38.

Front

If a race is 22.01 kilometers and one runner runs 9.41 kilometers, how far does the other runner run?

Back

The other runner runs 12.6 kilometers.

Front

What is 94 minus 4.8?

Back

94 minus 4.8 equals 89.2.

Front

Which addition equation equals 7.29?

Back

The equation 4.18 + 3.11 equals 7.29.

Front

What is 2 minus 0.43?

Back

2 minus 0.43 equals 1.57.

Front

What is the place value of 5 in 5.67?

Back

The place value of 5 in 5.67 is 5 (five units or whole number part).