Question

You want to do a quick estimate to the ones place of the sum of the following set of data. Pick the correct estimation. 3.5, 6.7, 3.2, 1.7

14
18
15
16

Answer 1

16

Explanation:

3.5 rounds up to 4

6.7 rounds up to 7

3.2 rounds down to 3

1.7 rounds up to 2

add them up to get 16

when its 5 or above, estimate upwards.

when its 4 and below, estimate downwards.