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Mental math level 3

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  • 19-15+60
    64
  • 2+80-50
    32
  • 64-4-50
    10
  • 60+20+3
    83
  • 31-10+3
    24
  • 6+20+50
    76
  • 20+2+11
    33
  • 45+50-5
    90
  • 15+1-6
    10
  • 24+5-19
    10
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