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

Toán Lớp 6: a) 2×[( 9-3²÷3⁰)÷2²⁰²¹+99]-100= b) 2⁷÷2²+5⁴÷5³÷2⁴-3×2⁵=

Toán Lớp 6: a) 2×[( 9-3²÷3⁰)÷2²⁰²¹+99]-100=
b) 2⁷÷2²+5⁴÷5³÷2⁴-3×2⁵=

Comments ( 2 )

  1. Giải đáp + Lời giải và giải thích chi tiết:
    a) 2xx[(9-3^2:3^0):2^2021+99]-100
    =2xx[(9-9:1):2^2021+99]-100
    =2xx[0:2^2021+99]-100
    =2xx99-100
    =198-100
    =98
    ———————–
    b) 2^7:2^2+5^4:5^3:2^4-3xx2^5
    =2^5+5:16-3xx2^5
    =32+5/16-3xx32
    =517/16-96
    =-1019/16 

  2. a)2×[( 9-3²÷3⁰)÷2²⁰²¹+99]-100
    =2×[(9-9÷1)÷2²⁰²¹+99]-100
    =2×[0÷2²⁰²¹+99]-100
    =2×[0+99]-100
    =2×99-100
     =198-100
    =98
    b) 2⁷÷2²+5⁴÷5³÷2⁴-3×2⁵
    =32+5÷16-96
    =32+$\frac{5}{16}$-96
    =$\frac{-1019}{16}$  

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