IXL | Estimate products word problems: identify reasonable answers

Tucker's Toy Store has a copier that can make 26 copies in a minute. Mr. Tucker works out that it can make 156 copies in 6 minutes. Does that sound about right?

Yes.

No, it is much too high.

No, it is much too low.

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Learn with an example

question

Fred visits a zoo that has 4 adult cheetahs. A sign at the zoo says an adult cheetah weighs about 88 pounds. Fred works out that the cheetahs weigh about 492 pounds altogether. Does that sound about right?

Yes.

No, it is much too high.

No, it is much too low.

solution

Check whether Fred's work is reasonable. Find about how many pounds the cheetahs weigh altogether. Use numbers that are easy to work with and that are close to the numbers in the problem.

There are 4 adult cheetahs.

An adult cheetah weighs about 88 pounds. That is close to 90 pounds. Multiply.

360

The cheetahs weigh about 360 pounds altogether. So, 492 is much too high.

Looking for more? Try these:

Lesson: Estimating products

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Teacher tools

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Estimate products: multiply one-digit numbers by two-digit numbers

Lesson: Estimating products

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