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

Toán Lớp 7: 0,2-3/5= 3/8×3¹/³ 4×(-1/2)²+1/2

Toán Lớp 7: 0,2-3/5=
3/8×3¹/³
4×(-1/2)²+1/2

Comments ( 1 )

  1. 0,2-$\frac{3}{5}$= $\frac{1}{5}$ – $\frac{3}{5}$ = $\frac{-2}{5}$
    $\frac{3}{8}$ x 3$\frac{1}{3}$ = $\frac{3}{8}$ x $\frac{10}{3}$ = $\frac{10}{8}$ =$\frac{5}{4}$
    4 x$ $ $(\frac{-1}{2})^{2}$ +$\frac{1}{2}$ = 4 x $\frac{1}{y4}$ + $\frac{1}{2}$ = 1 + $\frac{1}{2}$= $\frac{3}{2}$

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