addition
substraction
addition
substraction
100
10 + 5 =
What is 15
100
10-5
What is 5
100
88+2
What is 90
100
60-30
What is 30
200
20+ 10=
What is 30
200
20-5
What is 15
200
20+10
What is 30
200
65-5
What is 60
300
12+ 5=
What is 17
300
20-15
What is 5
300
35+ 10
What is 45
300
88-80
What is 8
400
80+10 =
What is 90
400
88-8
What is 80
400
65+15
What is 80
400
100-20
What is 80
500
70+15`
What is 85
500
100-10
What is 90
500
110+ 50
What is 160
500
888-800
What is 8
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