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

Toán Lớp 6: a, ( 15:3 . 5 mũ 2 ) : ( 20 : 2 mũ 2 ) b, 5 mũ 2 . 2 mũ 3 + 3 mũ 2 . 7 – 8 mũ 2 . 2 c, ( 5. 2 mũ 2 – 20 ) : 5 + 3 mũ 2 . 6 d, (24 .

Tháng Một 12, 2023 Toán học 2 Comments 0 views

Toán Lớp 6: a, ( 15:3 . 5 mũ 2 ) : ( 20 : 2 mũ 2 )
b, 5 mũ 2 . 2 mũ 3 + 3 mũ 2 . 7 – 8 mũ 2 . 2
c, ( 5. 2 mũ 2 – 20 ) : 5 + 3 mũ 2 . 6
d, (24 . 5 – 5 mũ 2 . 2 ) : ( 5 . 2 ) – 3
e , ( 6. 5 mũ 2 – 13 . 7 ) . 2 – 2 mũ 3 . ( 7 + 3)

Comments ( 2 )

  1. ngochuong2k2
    ngochuong2k2
    12 Tháng Một, 2023 at 6:18 chiều
    Reply
    a, ( 15:3 . $5^{2}$  ) : ( 20 : $2^{2}$  )
     =(5.25):(20:4)
    =50:5
    =10
    b, $5^{2}$  . $2^{3}$ +  $3^{2}$ . 7 – $8^{2}$  . 2
    =25.8+42-32
    =200+42-32
    =210
    c,( 5.$2^{2}$  – 20 ) : 5 + $3^{2}$  . 6
    =(20-20):5+36
    =0+36
    =36
    d, (24 . 5 – $5^{2}$  . 2 ) : ( 5 . 2 ) – 3
    =(120-50):10-3
    =70:10-3
    =7-3
    =4
    e, ( 6.$5^{2}$  – 13 . 7 ) . 2 – $2^{3}$  . ( 7 + 3)
    =(150-91).2-80
    =59.2-80
    =118-80
    =38
    CHÚC BẠN HỌC TỐT!!

  2. ngoclankhue
    ngoclankhue
    12 Tháng Một, 2023 at 6:18 chiều
    Reply
    a ) ( 15 : 3 . 5^2 ) : ( 20 : 2^2 )
    = ( 5 . 25 ) : ( 20 : 4 )
    = 125 : 5
    = 25
    b ) 5^2 . 2^3 + 3^2 . 7 – 8^2 . 2
    = 25 . 8 + 9 . 7 – 64 . 2
    = 200 + 63 – 128
    = 263 – 128
    = 135
    c ) ( 5 . 2^2 – 20 ) : 5 + 3^2 . 6
    = ( 5 . 4 – 20 ) : 5 + 9 . 6
    = ( 20 – 20 ) : 5 + 54
    = 0 : 5 + 54
    = 0 + 54
    = 54
    d ) ( 24 . 5 – 5^2 . 2 ) : ( 5 . 2 ) – 3
    = ( 120 – 25 . 2 ) : 10 – 3
    = ( 120 – 50 ) : 10 – 3
    = 70 : 10 – 3
    = 7 – 3
    = 4
    e ) ( 6 . 5^2 – 13 . 7 ) . 2 – 2^3 . ( 7 + 3 )
    = ( 6 . 25 – 13 . 7 ) . 2 – 8 . 10
    = ( 150 – 91 ) . 2 – 80
    = 59 . 2 – 80
    = 118 – 80
    = 38
    #dtkc
     

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

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