Multiply Decimals (signs & decimal placement)

Front

What is the rule for determining the number of decimal places in the product of two decimal numbers?

Back

Count the total number of decimal places in both factors. The product will have the same number of decimal places.

Front

If you multiply 2.5 (1 decimal place) by 0.4 (1 decimal place), how many decimal places will the product have?

Back

2 decimal places.

Front

What is the sign of the product when multiplying two negative numbers?

Back

The product is positive.

Front

What is the sign of the product when multiplying a positive number and a negative number?

Back

The product is negative.

Front

How do you align decimal points when multiplying decimals?

Back

Align the numbers to the right, ignoring the decimal points, and multiply as if they were whole numbers.

Front

Back

Front

Back

Front

If you multiply 3.6 (1 decimal place) by 0.02 (2 decimal places), how many decimal places will the product have?

Back

3 decimal places.

Front

What happens to the decimal point in the product when multiplying decimals?

Back

The decimal point is placed based on the total number of decimal places in the factors.

Front

Back