10﹣0.78=
7.5×20%=
×1.6=
2.5×4+2.5×4=
0.52=
0.8÷0.01=
1﹣1÷9=
24×25%=
45÷75%=
7+20%=
9.47+0.23=
10÷0.1%=
25×40%=
9÷15=
0.5÷25%=
3﹣85%=
×12=
0.4﹣0.25=
0.25×4=
42÷ =
1.5÷0.5=
﹣ =
+ =
31×497≈
×12= -= 100×50%= 0.32= 5﹣0.99=
10﹣0.86= × = 24× = 125%×8=
+ = ÷ = 0.62= 453÷52≈