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Missing Addends and Subtrahends to 20

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Missing Addends and Subtrahends to 20

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#addends #missing addend #subtrahends

6 + ___ = 20

14

15

17 - ___ = 6

9

15

9 + ___ = 17

8

15

13 - ___ = 4

9

15

16 - ___ = 9

7

15

20 - ___ = 9

11

15

16 - ___ = 5

11

15

17 + ___ = 19

2

15

15 + ___ = 20

5

15

Even or odd?

even

15

Even or odd?

Even

15

Even or odd?

odd

15

Even or odd?

odd

15

Even or odd?

odd

15

Even or odd?

even

15

Even or odd?

odd

15

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