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Topic 11 Review

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  • What equation does this picture show?
    80 - 30 = 50
  • 80 - 30 = ?
    50
  • 70 - 20 = ?
    50
  • What is 40 - 30?
    10
  • 99 - 10?
    89
  • What equation does this show?
    70 - 10 = 60
  • 6 tens - 4 tens = ?
    2 tens (20)
  • What is 70 - 50?
    20
  • 9 tens - 5 tens = ?
    4 tens (40)
  • 36 - 10?
    26
  • What is 30 - 20?
    10
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