IXL | Estimate products: multiply by 1-digit numbers | 4th grade math

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Estimate the product. Round the second factor to the nearest ten, and then multiply.

3 × 42

The product is approximately .

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$Confetti$

Excellent!

Now entering the Challenge Zone—are you ready?

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Teacher tools

Work it out

Not feeling ready yet? These can help:

C.1Rounding: up to hundred thousands place

U.2Multiply by a multiple of ten

Lesson: Estimating products