Decimal Operations Review

Front

What is the sum of 7.14 and 12.9?

Back

The sum is 20.04.

Front

Evaluate: 3.8 + 1.4

Back

5.2

Front

How do you divide 19.5 by 0.31?

Back

Move the decimal in the divisor two times to the RIGHT.

Front

What is the difference between 23.8 and 6.49?

Back

The difference is 17.31.

Front

Find the quotient of 64.44 ÷ 1.2

Back

53.7

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten.

Front

How do you add decimals?

Back

Align the decimal points and add as you would whole numbers.

Front

What is the process for subtracting decimals?

Back

Align the decimal points and subtract as you would whole numbers.

Front

What is the rule for multiplying decimals?

Back

Multiply as whole numbers, then count the total number of decimal places in both factors to place the decimal in the product.

Front

How do you divide decimals?

Back

Move the decimal in the divisor to make it a whole number, then move the decimal in the dividend the same number of places.