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

Toán Lớp 4: 32 x 3/4 – 0,25 x 32 + 32 x 1/2 Giúp mình nhé.

Toán Lớp 4: 32 x 3/4 – 0,25 x 32 + 32 x 1/2
Giúp mình nhé.

Comments ( 2 )

  1. 32 × 3/4 – 0,25 × 32 + 32 × 1/2
    = 32 × 0,75 – 0,25 × 32 + 32 × 0,5
    = 32 × (0,75 – 0,25 + 0,5)
    = 32 × 1
    = 32

  2. 32 × $\frac{3}{4}$ – 0,25 × 32 + 32 × $\frac{1}{2}$ 
    = 32 × ($\frac{3}{4}$ – $\frac{1}{4}$ +$\frac{1}{2}$)
    = 32 × ($\frac{2}{4}$ + $\frac{1}{2}$)
    = 32 × ($\frac{1}{2}$ + $\frac{1}{2}$)
    = 32 × 1
    = 32
    Chúc bạn học tốt! @Lê Cao Trung

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

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