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%=
+= ﹣= 3.5×= 2÷0.5=
1÷7× = 9.45÷0.9= 0.33= 3.7×8÷3.7×8=
5- = 0.01÷10%= 0.25+0.75÷3= 0.9×3.14× =
58.23-2.3= 6287÷7≈ 597×8≈ 125×8%=
0.25×3.2= + = 0.7÷0.01= 9.04+0.6=
-0.375= 13÷91= 10÷20%= 0.81× =
0.5÷5%= 0.75× = 2+3%= 3a×4a=
17+63= ×3= ÷20%= 0.56÷10= 1-1÷9=
25×0.4= - = ×2.5= 42= 301×39≈