小学五年级(含小数)解方程练习题

小学五年级(含小数)解方程练习题x+12.8=30×0.12455-x=32.76 x÷70=4.9 5.6x=78.4 18x+21=48 8x-4x=0.546 3.6x+2.2x=63.8 2x