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

Toán Lớp 6: 21 × [(1245 + 987)÷ 2 mũ 3 -15 ×12 ] +21

Toán Lớp 6: 21 × [(1245 + 987)÷ 2 mũ 3 -15 ×12 ] +21

Comments ( 2 )

  1. $\text{21. [(1245+987):}$$2^{3}-15.12] +21$
    \text{=21.(2232:8-180)+21}
    \text{=21.(279-180)+21}
    \text{=21.99+21}
    \text{=2079+21}
    \text{=2100}

  2. Giải đáp + Lời giải và giải thích chi tiết:
    21xx[(1245+987):2^3-15xx12]+21
    =21xx[2232:8-180]+21
    =21xx[279-180]+21
    =21xx99+21
    =2079+21
    =2100

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