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

Toán Lớp 6: 47-[(45×2 mũ 4 trừ 5 mũ 2 nhân 12) chia 14

Toán Lớp 6: 47-[(45×2 mũ 4 trừ 5 mũ 2 nhân 12) chia 14

Comments ( 2 )

  1. 47-[(45xx2^4 – 5^2 xx 12)]:14
    =47-(45xx16-25xx12):14
    =47-(720-300):14
    =47- 420:14
    =47 – 30
    =17

  2. 45 – [(45 × 2^4 – 5^2 × 12) : 14
    = 47 – [(45 . 16 – 25 . 12) : 14
    = 47 – [(720 – 300) : 14]
    = 47 – 420 : 14
    = 47 – 30
    = 17

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