Question
Select the expression that correctly uses compatible numbers to estimate the product 31×67 (1 point) Responses 30×60 30 × 60 30×70 30 × 70 40×60 40 × 60 40×70
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Answered by
GPT-4o mini
To estimate the product of 31 and 67 using compatible numbers, we should round each number to a nearby number that is easy to work with and results in a simpler multiplication.
- For 31, we can round it to 30.
- For 67, we can round it to 70.
So, the expression that correctly uses compatible numbers to estimate 31 × 67 is:
**30 × 70**
This choice makes calculation simpler while providing a close approximation of the actual product.
- For 31, we can round it to 30.
- For 67, we can round it to 70.
So, the expression that correctly uses compatible numbers to estimate 31 × 67 is:
**30 × 70**
This choice makes calculation simpler while providing a close approximation of the actual product.
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