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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: Tính:1) 15 -27 2) (-46) -72 3) 69 -(-125) 4) (-31) -(-247) 5) (-87) -55 6) 138 -164

Toán Lớp 6: Tính:1) 15 -27 2) (-46) -72 3) 69 -(-125) 4) (-31) -(-247) 5) (-87) -55 6) 138 -164 7) 150 -(-117) 8) (-241) -(-41)

Comments ( 1 )

  1. Giải đáp:
    1) 15-27=15+(-27)=-(27-15)=-12
    2)(-46)-72=-(72+46)=-118
    3)69-(-125)=69+125=194
    4)(-31)-(-247)=(-31)+247=247-31=216
    5) (-87) -55=-(87+55)=-142
    6) 138 -164=138+(-64)=-(138-64)=-74
    7) 150 -(-117)=150+117=267
    8) (-241) -(-41)=(-241)+41=-(241-41)=-200
     

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222-9+11+12:2*14+14 = ? ( )

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