Adding Two Digit Numbers Within 100

What equation does this model show?

• 33 + 26

• 32 + 63

• 23 + 36

• 63 + 23

Can you make a new 10? What is the sum of the model?

• Yes, 45 + 27 = 72

• No, 45 + 27 = 62

• Yes, 45 + 27 = 62

• No, 45 + 27 = 72

What number does this model show?

• 48

• 59

• 60

• 68

What equation does this model show?

• 55 + 10 = 65

• 45 + 5 = 50

• 46 + 10 = 56

• 44 + 5 = 49

32 + 26

• 58

• 85

• 60

• 52

72 + 19 = ____

25 + 46 = ?

• 33

• 43

• 71

• 63

72 + 12 = ?

• 84

• 74

What is 40 + 15?

• 55

• 65

• 75

• 85