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

Toán Lớp 5: 46,8 + 23,7% : 2 91,5% x 6 – 1,7

Toán Lớp 5: 46,8 + 23,7% : 2
91,5% x 6 – 1,7

Comments ( 2 )

  1. Giải đáp:
    $\text{a/ 46,9185 ; b/ 3,79}$
    Lời giải và giải thích chi tiết:
    $\text{a/ 46,8 + 23,7% : 2}$ $\\$ $\text{= 46,8 + 0,1185}$ $\\$ $\text{= 46,9185}$ $\\$ $\text{b/ 91,5% x 6 – 1,7}$ $\\$ $\text{= 5,49 – 1,7}$ $\\$ $\text{= 3,79}$

  2. 46,8 + 23,7% : 2 = 46,8 + $\frac{23,7}{100}$ x $\frac{1}{2}$ 
                               = 46,8 + $\frac{23,7}{200}$ 
                               = 46,8 + 0,1185
                               = 46,9185
                           
    91,5% x 6 – 1,7 = $\frac{91,5}{100}$ x6-1,7
                             = $\frac{549}{100}$  – 1,7
                             = 5,49 – 1,7
                             = 3,79 

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