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

Toán Lớp 5: thực hiện phép tính nhanh 1111 + 39 – 111+ 71 75.17 + 83.75 6 mũ 5 : 6 mũ 3 – 3 + 2 mũ 2.2 mũ 4

Toán Lớp 5: thực hiện phép tính nhanh
1111 + 39 – 111+ 71
75.17 + 83.75
6 mũ 5 : 6 mũ 3 – 3 + 2 mũ 2.2 mũ 4

Comments ( 2 )

  1. 1111+39-111+71
    =1111+110-111
    =1000+110
    =1110
    75.17+83.75
    =75.(17+83)
    =75.100
    =7500
    6^5:6^3-3+2^2. 2^4
    =6^(5-3)-3+2^(2+4)
    =6^2-3+2^6
    =36-3+64
    =33+64
    =97
    Cho mk xin hay nhất please
    Thank you

  2. a) 1111 + 39 – 111 + 71
    = 1111 – 111 + 39 + 71
    = 1000 + 110
    = 1110
    b) 75.17 + 83.75
    = 75.(17 + 83)
    = 75.100
    = 7500
    c) 6^5 : 6^3 – 3 + 2^2.2^4
    = 6^(5-3) – 3 + 2^(2+4)
    = 6^2 – 3 + 2^6
    = 36 – 3 + 64
    = 97
     

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