Decimal Operations

Front

What is a decimal?

Back

A decimal is a way of representing fractions in a base 10 system, using a dot (.) to separate the whole number part 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, carrying over if necessary.

Front

What is the result of 507.3 + 2.48?

Back

509.78

Front

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right to make it a whole number, and move the decimal point in the dividend the same number of places.

Front

What is 5.75 ÷ 0.25?

Back

23

Front

What is the result of 2.8 ÷ 4?

Back

0.7

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, borrowing if necessary.

Front

What is 10 - 0.65?

Back

9.35

Front

What is 12.6 ÷ 0.8?

Back

15.75

Front

What is the place value of 3 in 5.73?

Back

The place value of 3 in 5.73 is 'three hundredths' or 0.03.