①:x=:0.75
②6x﹣0.5×5=9.5
0.8×5= 3.6+1.4= = =
= 0×75%= 4.8÷24= 90×30%=
642÷6= 0.9×99+0.9= 1.25×80= 2.5÷0.01=
÷ = 2﹣ ﹣ = 3﹣ ﹣ = ( ÷ )×30=
90×=
5﹣1.8=
0.72÷6=
1÷0.25=
0.95+0.5=
3.4×0.1=
8﹣8×=
①6x=18
②x:0.4=10:
③x﹣60%x=2
④=
1,3,2,6,4,9,8,,,15,,18,……