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

Toán Lớp 6: 1d) 2 mũ 2 . 3-(1 mũ 10+8):3mũ2 e) 6 mũ 2 :43+2.5 mũ 2 f) 2007.75+25.2007

Toán Lớp 6: 1d) 2 mũ 2 . 3-(1 mũ 10+8):3mũ2
e) 6 mũ 2 :43+2.5 mũ 2
f) 2007.75+25.2007

Comments ( 2 )

  1. $\text{1d)2².3-($1^{10}$ +8):3²}$
    $\text{=4.3-(1+8):9}$
    $\text{=12-9:9}$
    $\text{=12-1}$
    $\text{=11}$
    $\text{e)6²:43+2.5²}$
    $\text{=36:43+2.25}$
    $\text{=$\frac{36}{43}$+50}$
    $\text{=50 $\frac{36}{43}$}$
    $\text{f)2007.75+25.2007}$
    $\text{=2007.(75+25)}$
    $\text{=2007.100}$
    $\text{=200700}$

  2. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    bài 1:
    d) 2^2.3-(1^10+8):3^2
    =4.3-(1+8):9
    =12-9:9
    =12-1=11
    e)6^2:43+2.5^2
    =36:43+2.25
    =36:43+50
    =0,83720930233+50
    =50,83720930233
    f)2007.75+25.2007
    =2007.(75+25)
    =2007.100
    =200700
    @gửi bn
     

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