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

Toán Lớp 4: 2680-278-402+215= ,168:6+25 nhân 9 = ,132 nhân 2:4 nhân 9

Toán Lớp 4: 2680-278-402+215= ,168:6+25 nhân 9 = ,132 nhân 2:4 nhân 9

Comments ( 2 )

  1. 2680-278-402+215
    =2402-402+215
    =2000+215
    =2215
    168:6+25×9
    =28+225
    =253
    132×2:4×9
    =264:4×9
    =66×9
    =594

  2. a) 2680 – 278 – 402 + 215
    = 2402 – 402 + 215
    = 2000 + 215
    = 2215
    b) 168 : 6 + 25 xx 9
    = 28 + 225
    = 253
    c) 132 xx 2 : 4 xx 9
    = 256 : 4 xx 9
    = 66 xx 9
    = 594

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

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