math estimating w/fractions
posted by marko on .
can you check my answers:
estimate w/mixednumbers:
8) 9 1/11  3 7/9
i got:
9  4 = 5
9) 4 1/2  1 24/25
i got:
4  2 = 2
12) 9 8/10 + 8 2/10
i got:
10 + 8 = 18
14) 4 5/9 + 5 9/10
i got:
4 + 6 = 10

All are correct  except your teacher might expect a different answer for 14.

Why would 14 be different answer?

If you round these fractions, 4 5/9 is more than 4 1/2 so it could be rounded to 5.