14.9-10.1 They wanted me to choose the best estimate. What does estimate means?

they arived at the answer 5.

Estimate means to take an educated guess at the answer. In this problem, 14.9 is almost 15. 10.1 is about 10.

15 - 10 = 5.

Oh thanks. I understand this one.

Oh thanks. I understand this one.

You're welcome. :-)