1stGRADE
6–7 YEARS
2nd grade
7–8 years
3rd grade
8–9 years
4th grade
9–10 years
5th grade
10–11 years
6th grade
11–12 years
7th grade
12–13 years
8th grade
13–14 years
9th grade
14–15 years
Incomplete exercise: Percentage discount
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