135 miles in 3 hours = 135 / 3 = 45 miles per hour
3 because the next number to the right is a 0 and will not be rounded up.
These are the answers with the picture of square root of 64 as number 1
1) 8
2) 81
3) 5
4) 41
5) 6
6) 4
7) 19
8) 30
9) 19
10) 20
11) 7
12) 68
13) 20
14) 65
15) 6
16) 6
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