In this lesson, we will learn how to use rounding and compatible numbers to estimate the product of two decimal numbers.
Students will be able to
Q1:
Which of the following is the nearest to 5.478×1,080 upon rounding one of the two numbers to either 10, 100, or 1,000?
Q2:
Elizabeth wants to buy a pair of jeans that cost $49 .99. The sign on the display says that the jeans are 59 off. Which expression can be used to best estimate the discount?
Q3:
Which of the following is closest to the result of 27.915×99.06 after rounding one of the two numbers to 10, 100, or 1,000?
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