Adding two digit numbers

What equation does this model show?

• 33 + 26

• 32 + 63

• 23 + 36

• 63 + 23

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

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

Tags

CCSS.2.NBT.B.6

Which model shows 3 tens and 8 ones?

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Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

Which model shows the same amount as this model?

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Tags

CCSS.2.OA.A.1

Which model shows the same number as this model?

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Tags

CCSS.1.NBT.A.1

What number does this model show?

• 48

• 59

• 60

• 68

Tags

CCSS.1.NBT.A.1

43 + 10 = ?

• 34

• 44

• 53

• 50

Tags

CCSS.2.NBT.B.5

What equation does this model show?

• 55 + 10 = 65

• 45 + 5 = 50

• 46 + 10 = 56

• 44 + 5 = 49

Tags

CCSS.2.OA.A.1

How many sticks and dots would you use to show the number ninety-five?

• 5 sticks and 9 dots

• 6 sticks and 3 dots

• 9 sticks and 5 dots

• 2 sticks and 5 dots

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

How would you write this model in expanded form?

• 10 + 5 = 15

• 30 + 3 = 33

• 25 + 4 = 29

• 20 + 5 = 25

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C