Question

Help Free Medal

Answer 1

do I round first then do the problem or round after doing the problem

Answer 2

Your teacher likely wants you to develop an intuition for what those operations do. Anyone can punch numbers in to a calculator, but it takes a bit of knowledge to understand estimation.

For example, if they wanted you to estimate 249 x 502, they wouldn't expect you to multiply first and then round up/down.

Answer 3

ok, but when rounding first, to the nearest integer (all answers are to nearest tenth), the best I can come up with is 14.98; or 15, yet that isn't one of the multiple choice. All are higher.

Answer 4

multiple choice answers were 10.3, 15.2-15.4

Answer 5

So your options are a) 10.3, b) 15.2, c) 15.4?

Answer 6

d) 15.3

Answer 7

Okay. What do you think might be good estimations for the numbers that appear in the problem?

Answer 8

So, if I rounded to the nearest integer (no tenths), and then did the problem, I get 15.3

Answer 9

is that what I am supposed to do?

Answer 10

Yes, I believe so.

Answer 11

thank you

Answer 12

Yep. These problems are about getting you to be able to do these problems in your head, so they want you to use really simple numbers.

Answer 13

If you're busting out a calculator for an estimation problem, then that kinda defeats the point doesn't it :p