3 years ago

To estimate the product of 21 x 78, what is the best way to round the factors? (2 points)

Mathematics

2 answers:

Masja [62]3 years ago

5 0

Answer:

20x80

Step-by-step explanation:

21 is closest to 20 and is rounded down, 80 is closest to 78 and rounded up so the closest and most logical estimate is a: 20x80.

Elza [17]3 years ago

3 0

I would say 20x80. These are the closest to 21 and 78

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