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

Toán Lớp 6: a) 2 mũ 3 nhân 19-2 mũ 3 nhân 14 + 1 mũ 2018 b) 10 mũ 2 – [60:(5 mũ 6 : 5 mũ 4 – 3.5)] c) 160 : { 17+[3 mũ 2. 5-(14+2 mũ 11 : 2 mũ 8)]}

Toán Lớp 6: a) 2 mũ 3 nhân 19-2 mũ 3 nhân 14 + 1 mũ 2018
b) 10 mũ 2 – [60:(5 mũ 6 : 5 mũ 4 – 3.5)]
c) 160 : { 17+[3 mũ 2. 5-(14+2 mũ 11 : 2 mũ 8)]}
Giúp em với ạ

Comments ( 2 )

  1. a) 2³ × 19 – 2³ × 14 + 1²⁰¹⁸
    = 8 × 19 – 8 × 14 + 1
    = 152 – 112 + 1
    = 40 + 1 
    = 41
    b) 10² – [ 60 : ( 5⁶ : 5⁴ – 3 × 5 ) ]
    = 100 – [ 60 : ( 15625 : 625 – 3 × 5 ) ]
    = 100 – [ 60 : ( 25 – 15 ) ]
    = 100 – ( 60 : 10 )
    = 100 – 6
    = 94
    c) 160 : { 17 + [ 3² × 5 – ( 14 + 2¹¹ : 2⁸ ) ] }
    = 160 : { 17 + [ 9 × 5 – ( 14 + 2048 : 256 ) ] }
    = 160 : { 17 + [ 45 – ( 14 + 8 ) ] }
    = 160 : [ 17 + ( 45 – 22 ) ]
    = 160 : ( 17 + 23 )
    = 160 : 40
    = 4
    @ Rin gửi

  2. a) 2³.19-2³.14+$1^{2018}$ 
    =2³.(19-14) +$1^{2018}$ 
     =9.5+1
    =46
    b) 10²-[60:($5^{6}$ : $5^{4}$ -3.5)]
    =100-[60: (5²-15)
    =100-[60:10]
    =100-6
    =94
    c)160 : {17+[3².5-(14+$2^{11}$ : $2^{8}$ )]}
    =160:{17+[9.5-(14+2048:256)]}
    =160: {17+[45-(14+8)]}
    =160:{17+(45-22)}
    =160:{17 +23}
    =160:40
    =4
    Gửi em!Xin 5* và ctlhn!
    #Study well<3

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

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