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Toán 1 (+ -)

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  • 5+2=
    7
  • 3+2=
    5
  • ....+ 3 = 6
    3
  • 9 - 3 =
    6
  • 9 - 2=
    7
  • 7 - 2=
    5
  • 3+7=
    10
  • 4+....=7
    3
  • 8 - 5=
    3
  • 6 + ....= 9
    3
  • 4+5=
    9
  • ... + 4 = 7
    3
  • 6+2=
    8
  • 8-4=
    4
  • 1 + .....= 3
    2
  • .... + 5 = 10
    5
  • 9 - ... = 2
    7
  • 1 + .....= 5
    4
  • 4 + 2 =
    6
  • 2 + 6 =
    8
  • 6 - 3 =
    3
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