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

Toán Lớp 6: Bài 2. Tính nhanh(nếu có thể) A) 9 + 4 . 5 – 27 : 3 B) 5 . 4³ – 2 . 5² + 9¹² : 9¹¹

Toán Lớp 6: Bài 2. Tính nhanh(nếu có thể)
A) 9 + 4 . 5 – 27 : 3
B) 5 . 4³ – 2 . 5² + 9¹² : 9¹¹

Comments ( 2 )

  1. A) 9 + 4 . 5 – 27 : 3
    = 9 + 20 – 9
    = 29 – 9
    = 20
    B) 5 . 4^3 – 2 . 5^2 + 9^12 : 9^11
    = 5 . 64 – 2 . 25 + 9
    = 320 – 50 + 9
    = 270 + 9
    = 279

  2. 9+4.5-27:3
    =9+20-9
    =(9-9)+20
    =20
    b,
    5. 4^3-2. 5^2+9^12:9^11
    =5. 64-2. 25+9
    =320-50+9
    =270+9
    =279

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