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Solve Using 100 Chart
Solve Using Cubes Drawing
Solve by Breaking Apart Numbers
100
What is 60 + 40? 

100

100

What is 54+9?

63

100

What is 45+34?

79

200

What is 70-20?

50

200
What is 42 + 55?

97

200

What is 23 + 73?

96

300

What is 50+16?

66

300

What is 36 + 29?

65

300

What is 64 + 12?

76