56+44= 0.9×0.6= 20﹣3.7= 8÷100= 2.5×3.5×4=
-= += 10÷= 15×= ×24+24=
6﹣0.4=
7.52+2.48=
0.73÷0.1=
0÷×=
15×60=
÷=
4-=
24××
13×40=
6﹣0.6=
0.8×0.5=
186+24=
=
10﹣7.6=
8.32÷4=
2.4×5=
5÷2.5=
0.39×100=
0.1+0.09=
1÷=
=
(+)×9= 1.5×100= 99×0.8+0.8= 42=
+= 7﹣= ×= ÷=
420﹣298= 4+5.6= = =
0.25×0.4= 0.133= = =
217﹣18= ×= 3÷= 0.78+0.32=
32﹣0.25= 3﹣= 200×3.6= +×5=