Decimal Operations Rules Review

Front

What is the first step to divide decimals like 19.5 ÷ 0.31?

Back

Move the decimal in the divisor (0.31) right two places to make it a whole number.

Front

When multiplying decimals, what should you do first?

Back

Line up the numbers.

Front

What must be done if there is a decimal in the divisor before dividing?

Back

The divisor must be made a whole number.

Front

What happens to the decimal in the dividend when you move the decimal in the divisor?

Back

The decimal moves the same amount in the dividend that it moved in the divisor.

Front

What is the rule for moving decimals when dividing?

Back

Always move the decimal in the divisor to the right to make it a whole number, and move the decimal in the dividend the same number of places.

Front

How do you line up decimals when adding or subtracting?

Back

Line up the decimal points vertically.

Front

What is the result of multiplying 0.5 by 0.2?

Back

0.1

Front

When dividing 4.5 by 1.5, what is the first step?

Back

You can divide like normal since there are no decimals in the divisor.

Front

What is the product of 3.6 and 0.4?

Back

1.44

Front

If you multiply 2.5 by 0.6, what is the first step?

Back

Line up the numbers and multiply like normal.