Estimate the answers:

a) 3 10/11 + 2 1/101 = Choose 4,5,6,or 7
b) 5 2/47 - 2 1/35 = Choose 2,3,4, or 5
c) 6 17/19 x 7 3/290 = Choose 42,49,63 or 213
I need to choose the best answer to this problems. Please help me with this. Thanks

I'll do one for you.

3 10/11 is almost 4.
2 1/101 is almost 2.
When you add 4 and 2 together you get 6.

Now ... you try the others.