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First Grade subtraction

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    1
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    4
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    2
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    5
  • 7-1
    6
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    3
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    4
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    0
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    5
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  • 2-2
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    6
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    5
  • 3-3
    0
  • 6-0
    6
  • 8-2
    6
  • 9-1
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  • 4-0
    4
  • 3-2
    1
  • 4-3
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  • 2-0
    2
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