Two-Digit One-Digit Addition Subtraction

45 + 15 

• 13

• 30

• 90

• 60

360 - 254

• 106

• 114

• 116

• 206

What is the sum of these two numbers?

• 80

• 85

• 45

• 87

Michelle had 43 students in 2nd grade, Mary had 57 in her class, Paula had 32 in her class, and Jenny had 15 in her class.  How many students did they have altogether?

• 47

• 137

• 125

• 147

Add 37 + 16

• 53

• 54

• 55

• 56

Use mental math to solve.

120 + 42 + 80

Evaluate responses using AI:

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Calculate 41 + 29

• 70

• 71

• 72

• 73

52 + 19

• 71

• 61

• 81

• 72

What is 40 + 15?

• 55

• 65

• 75

• 85

Calculate 50 + 20

• 70

• 80

• 90

• 100