Question

Estimate 93 x 19.


A 1800 - B 927 - C 1710 - D 900

Answer 1

Option A: 1800

Because to estimate you can multiply 90 and 20.

Comes out to be 1800 . So yeah!

Hope this helps!

Answer 2

Estimate 93 x 19

Round to 1 signification figure:

When we do estimation, we round each of the term to 1 significant figure.

So in this case:

Since the digit in the ones place is 3 and 3 is smaller than 5:

93 ≈ 90

Since the digit in the ones place is 9 an 9 is greater than 5, we add 1 to the digit in the tens place

19 ≈ 20

Now we can estimate the sum:

93 x 19 ≈ 90 x 20 = 1800

Answer: (A) 1800