When you are estimating when you round when its on the half way point or more its rounds up and if its lower then half it rounds done.
eg.) 5 gets rounded up to 10.
Hard:
5)Raymond is making a chart but needs to know all the totals .
Age:
0-4 : 3512
5-14 : 5823
15-19 : 2242
20-24 : 4929
25+ : 19123
5a) About how many people in 5-14 and 15-19 together?
5b) About how many people more is 25+ then 0-4?
5c) About how many people are there in total?
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