REVIEW: Multiply and Divide Decimals

Front

What is the result of 3.69 ÷ 0.9?

Back

4.1

Front

What is the result of 3.57 x 4.6?

Back

16.422

Front

If Sarah bought 2.5 meters of fabric at $6.20 per meter, how much did she spend?

Back

$15.50

Front

What was Mr. Williams' average speed if he ran 13.2 miles in 1.6 hours?

Back

8.25 mph

Front

What is the result of 11.3 × 2.5?

Back

28.25

Front

Define decimal multiplication.

Back

Decimal multiplication is the process of multiplying numbers that have decimal points, where the product is determined by multiplying as if the numbers were whole, then placing the decimal point in the result.

Front

What is the rule for dividing decimals?

Back

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

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal over its place value (e.g., 0.75 = 75/100) and simplify.

Front

What is the importance of estimating when multiplying decimals?

Back

Estimating helps to quickly check if the answer is reasonable and can guide the calculation process.

Front

What is the place value of the digit 5 in 3.45?

Back

The place value of 5 in 3.45 is in the hundredths place.