Question

Estimate 93 x 19 A.900 B.1800 C.1710 D.92

Answer 1

When we do estimation, we always round the 1 significant figure.

When we round to 1 significant figure, we check the 2nd most significant figure according to the rounding rules:

• if the digit is less than 5, we ignore
• else, we add one to the significant figure

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93 ≈ 90

19 ≈ 20

93 x 19 ≈ 90 x 20 = 1800

Answer: 1800

Answer 2

Thank you for asking this question. Here is your answer:

First of all we will round the figure 93 into an even number. That would be 90

And then we will round off 19 into 20.

Now we will solve it:

93 x 19

90 x 20 = 1800

So the final answer for this question is 1800

If there is any confusion please leave a comment below.