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

Toán Lớp 5: Tính A.124,58 + 32,41 B.2/3 – 1/6 C.2/5 × 1/2 D.1 1/5 ÷ 1/2

Toán Lớp 5: Tính
A.124,58 + 32,41
B.2/3 – 1/6
C.2/5 × 1/2
D.1 1/5 ÷ 1/2

Comments ( 2 )

  1. Giải đáp:
    a,124,58 + 32,41 = 156,99
    b, $\frac{2}{3}$ – $\frac{1}{6}$ = $\frac{4}{6}$ – $\frac{1}{6}$ =$\frac{3}{6}$ = $\frac{1}{2}$ 
    c,$\frac{2}{5}$ x $\frac{1}{2}$ = $\frac{2×1}{5×2}$ = $\frac{2}{10}$ = $\frac{1}{5}$ 
    d,1$\frac{1}{5}$ :$\frac{1}{2}$ = $\frac{6}{5}$ x 2= $\frac{12}{5}$ 
     
    Lời giải và giải thích chi tiết:
     

  2. A. 124,58 + 32,41
    = 156,99
     B. $\frac{2}{3}$ – $\frac{1}{6}$
    = $\frac{4}{6}$ – $\frac{1}{6}$
    = $\frac{4-1}{6}$
    = $\frac{3}{6}$ = $\frac{1}{2}$ 
    C. $\frac{2}{5}$ x $\frac{1}{2}$
    = $\frac{2×1}{5×2}$
    = $\frac{2}{10}$ = $\frac{1}{5}$ 
     
    D. 1$\frac{1}{5}$ : $\frac{1}{2}$
    = $\frac{6}{5}$ : $\frac{1}{2}$
    = $\frac{6}{5}$ x $\frac{2}{1}$
    = $\frac{12}{5}$ 
    #Gửi bạn

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