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

Toán Lớp 5: Tính: 12%+36%= 125%x5,5%= 20,5%x4= 31,2%:100= 80%:10%= 80%x12,5=

Toán Lớp 5: Tính:
12%+36%=
125%x5,5%=
20,5%x4=
31,2%:100=
80%:10%=
80%x12,5=

Comments ( 2 )

  1. 12% + 36% = 0,12 + 0,36 = 0,48
    125% x 5,5% = 0,125 x 0,55 = 0,06875
    20,5% x 4 = 0,205 x 4 = 0,82
    31,2% : 100 = 0,312 : 100 = 0,00312
    80% : 10% =0,8 : 0,1 = 8
    80% x 12,5 =0,80 x 12,5 = 10

  2. $#Dứa$
    12% + 36% = $\frac{2}{100}$ + $\frac{36}{100}$ = $\frac{12}{25}$ = 0,48
    125% x 5,5% = $\frac{125}{100}$ x $\frac{5,5}{100}$ = $\frac{11}{160}$ = 0,06875
    20,5% x 4 = $\frac{20,5}{100}$ x 4 = $\frac{41}{50}$ = 0,82
    31,2% : 100 = $\frac{31,2 : 100}{100}$ = $\frac{39}{12500} = $0,00312
    80% : 10% = $\frac{80}{100}$ : $\frac{100}{100}$ = 8
    80% x 12,5 = $\frac{80}{100}$ x 12,5 = 10

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