Mental Addition and Subtraction to 100

35+40=

• 75

• 80

• 85

• 90

Tags

CCSS.2.NBT.B.5

23+46

• 69

• 72

• 63

• 68

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

26-18=

• 12

• 40

• 8

• 32

Tags

CCSS.2.OA.A.1

66-42=

• 23

• 24

• 32

• 40

Tags

CCSS.2.NBT.B.5

−2 + 8 =

• 6

• −6

• −10

• 10

Tags

CCSS.7.NS.A.1C

76 - 28 = ________

• 47

• 104

• 48

• 50

Tags

CCSS.2.NBT.B.5

Find the difference. 100,000 - 45,060 

• 43,940

• 56,897

• 54,940

• 67,943

Tags

CCSS.4.NBT.B.4

Draw a model to solve: 77 + 17

• 7717

• 94

• 93

• 60

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Use mental math to solve: 14 + 3

• 17

• 14

• 3

• 11

Tags

CCSS.1.OA.C.6

What is the sum of 47 and 36 using mental addition strategies?

• 73

• 83

• 93

• 103

Tags

CCSS.2.NBT.B.7