100-0.4=
1÷9=
0.125×80=
0.86+0.4=
+ =
- =
× =
0.1÷ =
x﹣60%x=36
0.5x﹣2.5=2.5
0.8×5= 3.6+1.4= = =
= 0×75%= 4.8÷24= 90×30%=
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