Addition

Adding two numbers

100

15 + 16

What is 31

200

25 + 43

What is 68

300

900 + 900

What is 1,800

400

18 + 18

36

500

74 + 15

What is 89

Adding three numbers

100

2 + 2 +2

What is 6

200

2 + 3 + 4 

What is 9

300

3 + 5 + 2

What is 10

400

9 + 8 + 7

What is 24

500

10 + 3 + 5

What is 18