+=
÷8=
4--=
+++=
43÷10%=
÷=
××0=
1.25+8.75=
1﹣0.625=
47+53= 420÷70= 100﹣28.5= 0.03×8= 234﹣199=
50×80= 2.7÷0.9= += 1÷= ×=
1.69+0.1=
0.52=
﹣=
2.6×0.25×4=
﹣×0=
9.9×9+9.9=
×÷=
37+68=
21﹣0.1=
3.6× =
÷50%=
0.5: =
1.25×8=
21×498≈
723÷89≈
803-207= ÷5= 798+150= + =
0.25×8= 1.5- = 7.5÷ = 0.77+0.3=
9.8-8= × = 45.54÷45= 24× =