Lesson: Estimating the Product of Two Decimals

In this lesson, we will learn how to use rounding and compatible numbers to estimate the product of two decimal numbers.

Sample Question Videos

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Worksheet: 5 Questions • 2 Videos

Q1:

Engy wants to buy a pair of jeans that cost $49.99. The sign on the display says that the jeans are off. Which expression can be used to estimate the discount?

Q2:

Which of the following is closest to the result of after rounding one of the two numbers to 10, 100, or 1,000?

Q3:

The average person blinks about 900 times an hour.

By rounding the number of hours in a day to the nearest ten, estimate how many times a person blinks in a day.

Is this estimate more or less than the actual number of times a person blinks in a day?

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