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

Toán Lớp 6: a,(20 x 2^4 +12 x 2^4 – 48 x 2^2):8^2 b,(2^3 x 9^4 +9^3 x 45):(9^2 x 10- 9^2)

Home/ Toán Lớp 6: a,(20 x 2^4 +12 x 2^4 – 48 x 2^2):8^2 b,(2^3 x 9^4 +9^3 x 45):(9^2 x 10- 9^2)

Toán Lớp 6: a,(20 x 2^4 +12 x 2^4 – 48 x 2^2):8^2 b,(2^3 x 9^4 +9^3 x 45):(9^2 x 10- 9^2)

Tháng Mười 22, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: a,(20 x 2^4 +12 x 2^4 – 48 x 2^2):8^2
b,(2^3 x 9^4 +9^3 x 45):(9^2 x 10- 9^2)

Comments ( 2 )

  1. hoquyly
    hoquyly
    22 Tháng Mười, 2022 at 3:40 sáng
    Reply
    a) ( 20 \times 2^4 + 12 \times 2^4 – 48 \times 2^2 ) : 8^2
    = ( 5 \times 2^6 + 3 \times 2^6 – 3 \times 2^6 ) : 2^6
    = 2^6( 5 + 3 – 3 ) : 2^6
    = 5
     b) ( 2^3 \times 9^4 + 9^3 \times 45 ) 🙁 9^2 \times 10 – 9^2 )
    = 9^4( 8 + 5) : 9^2( 10 – 1)
    = 9^4 . 13 : 9^3
    = 9 . 13
    = 117
     

  2. minhtuquynh
    minhtuquynh
    22 Tháng Mười, 2022 at 3:40 sáng
    Reply
    Gửi

    toan-lop-6-a-20-2-4-12-2-4-48-2-2-8-2-b-2-3-9-4-9-3-45-9-2-10-9-2

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

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