1st Grade MM1 1051

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There are 5 boys at Jake's party. Some more came after the basketball practice. Then, there were 9. How many boys came to Jake's party after basketball practice?

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3 + 7 = ____

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3 + 7 = ____

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____ = 1 + 4

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3 + 2 = ____

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____ = 2 + 6

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5 + 1 = ____

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____ = 8 + 1

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9 + 1 = ____

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Select all of the partners to 10.

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Select all of the +1 facts.

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6 + 4 = ____

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Select all of the +2 facts.

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Look at the party picture!

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Monica says that when the unknown number is 4, it makes this number sentence true: 5 + 3 = ____ + 4.
Terry says that she is wrong. He says 8 makes the number sentence true.

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b. Monica says that 3 and 5 is equal to 5 and 3. Is she wrong? Explain using pictures, numbers, or words.

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There are 5 boys at Jake's party. Some more came after the basketball practice. Then, there were 9. How many boys came to Jake's party after basketball practice?

3 + 7 = ____

3 + 7 = ____

____ = 1 + 4

3 + 2 = ____

____ = 2 + 6

5 + 1 = ____

____ = 8 + 1

9 + 1 = ____

Select all of the partners to 10.

Select all of the +1 facts.

6 + 4 = ____

Select all of the +2 facts.

Look at the party picture!

Monica says that when the unknown number is 4, it makes this number sentence true: 5 + 3 = ____ + 4.Terry says that she is wrong. He says 8 makes the number sentence true.

b. Monica says that 3 and 5 is equal to 5 and 3. Is she wrong? Explain using pictures, numbers, or words.

c. Terry says 8 = 8. is he wrong? Explain using pictures, numbers or words.

Monica says that when the unknown number is 4, it makes this number sentence true: 5 + 3 = ____ + 4.
Terry says that she is wrong. He says 8 makes the number sentence true.