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

Toán Lớp 7: l-2l . $\sqrt[]{0,25}$ + (-3)$^{3}$ . $\frac{1}{9}$ + ($-2009)^{0}$ – ($-1)^{2009}$

Toán Lớp 7: l-2l . $\sqrt[]{0,25}$ + (-3)$^{3}$ . $\frac{1}{9}$ + ($-2009)^{0}$ – ($-1)^{2009}$

Comments ( 2 )

  1. $\text{ | -2 |. $\sqrt{0,25}$ + $( -3 )^3$. $\dfrac{1}{9}$ + $( -2009 )^0$ – $( -1 )^{2009}$ }$
    $\text{ = 2. 0,5 + ( -27 ). $\dfrac{1}{9}$ + 0 – ( -1 ) }$
    $\text{ = 1 + ( -3 ) + 0 + 1 }$
    $\text{ = 1 – 3 + 1 }$
    $\text{ = -2 + 1 }$
    $\text{ = -1 }$
     

  2. Giải đáp:
    |-2| . \sqrt{0,25} + (-3)^3 . 1/9 + (-2009)^0 – (-1)^2009 = -1
    Lời giải và giải thích chi tiết:
     |-2| . \sqrt{0,25} + (-3)^3 . 1/9 + (-2009)^0 – (-1)^2009
    =  2  . 0,5 + (-27) . 1/9 – 1 . (-1)
    =  1 – 3 + 1
    = -2 +1
    =  -1

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