coins
addition
subtraction
clock
100

it is the small coin 

a nickle

b penny

c quater

d dime

dime

100

what is 11 +10

21

100

what is 5-3

2

100

if its 3:15 and now it is 4:10 how many hours and minutins it been

55 minutins

200

how many coins are there

4

200

what is 5+3

8

200

10-4

6

200

if the short hand on 2 and the long hand on 3 

what time is it

2:15

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