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

Toán Lớp 6: Thực hiện phép tính: o) 151 – 2 mũ 91:2 mũ 88+1 mũ 2 x 3 p) 2 mũ 38 : mũ 36 + 5 mũ 1 x 3 mũ 2 – 7 mũ 2 q) 7 mũ 91 : 7 mũ 89 + 5 x 5 mũ

Toán Lớp 6: Thực hiện phép tính:
o) 151 – 2 mũ 91:2 mũ 88+1 mũ 2 x 3
p) 2 mũ 38 : mũ 36 + 5 mũ 1 x 3 mũ 2 – 7 mũ 2
q) 7 mũ 91 : 7 mũ 89 + 5 x 5 mũ 2 – 124
r) ( 3 mũ 2 + 2 mũ 3 x 5) : 7
s) 11 mũ 25 : 11 mũ – 3 mũ 5 : ( 1 mũ 10 + 2 mũ 3 ) – 60
t) 5 mũ 20 : ( 5 mũ 15 x 6 + 5 mũ 15 x 19 )
u) 59 x 73 – 30 mũ 2 + 27 x 29

Comments ( 1 )

  1. o) 151 – 2^91 : 2^88 + 1^2 . 3
    = 151 – 2^3 + 3
    = 143 + 3 = 146
    p) 2^38 : 2^36 + 5^1 . 3^2 – 7^2
    = 2^2 + 45 – 49
    = 4 + 45 – 49 = 0
    q) 7^91 : 7^89 + 5 . 5^2 – 124
    = 7^2 + 5 . 25 – 124
    = 7^2 + 125 – 124
    = 49 + 125 – 124
    = 50
    r) (3^2 + 2^3 . 5) : 7
    = (9 + 8 . 5) : 7
    = 49 : 7 = 7
    s) 11^25 : 11^23 – 3^5 : (1^10 + 2^3) – 60
    = 11^2 – 3^5 : 9 – 60
    = 121 – 243 : 9 – 60
    = 121 – 27 – 60
    = 34
    t) 5^20 : (5^15 . 6 + 5^15 . 19)
    = 5^20 : (5^15 . 25)
    = 5^20 : (5^15 . 5^2)
    = 5^20 : 5^17
    = 5^3
    u) 59 . 73 – 30^3 + 27 . 29
    = 59 . 73 – 27000 + 27 . 29
    = 4307 – 27000 + 783
    = -21910

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

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