Question

I need help..... I don't understand at all

Answer 1

I think you have to estimate to a whole so 2 1/2 would be 3

Answer 2

You will have to estimate the two fraction by the benchmark which is 0,1/2, or 1 then add the fraction that you estimate with the mixed number beside it. Add the to number together to get the answer.

Example:
3 2/3 - 1 1/2

3 2/3 = 4
1 1/2 = 1 1/2
4 - 1 1/2 = 2 1/2