Toán Lớp 5: ××4,8+5,2××=160 ××4,8+5,8××=160+45

Question

Toán Lớp 5:  ××4,8+5,2××=160 ××4,8+5,8××=160+45

thanoanghha · Answer

$ text{a ] x &times; x 4 , 8 + 5 , 2 &times; x = 160}$   $ text{x &times; [ 4 , 8 + 5 , 2 ]      = 160}$   $ text{x &times; 10                        = 160}$   $ text{x                                 = 160 : 10}$   $ text{x                                 = 16}$   $ text{b ]x &times; 4 , 8 + 5 , 2 &times; x = 160 + 45 }$   $ text{x &times; 4 , 8 + 5 , 2 &times; x     = 205}$   $ text{x &times; [ 4 , 8 + 5 , 2 ]       = 205}$   $ text{x &times; 10                         = 205}$   $ text{x                                  = 205 : 10}$   $ text{x                                  = 20 , 5}$

giahan44 · Answer

x&times;4,8+5,2&times;x=160       x&times;(4,8+5,2)=160       x&times;10=160       x=160:10       x=16       x&times;4,8+5,2&times;x=160+45       x&times;(4,8+5,2)=205       x&times;10=205       x=205:10       x=20,5