In your own words, describe how to estimate a product of a multiplication expression using compatible numbers. Use the example of 2.35 x 21.02 in your answer.


  1. Answer: to find a reasonable answer you can estimate to help. You could do 2 x 21 to get a general idea of what the actual product will be.
    Step-by-step explanation:
    2 x 21 = 42
    2.35 x 21.02 = 49.397
    they are pretty close so we know that they are both reasonable.


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