1.6×0.25=
4.8×100=
3.45÷0.01=
0.22=
3.5×0.2=
9+3.1=
2-0.88=
a-0.12a=
3.4+1.3=
4.14+5=
7.28-0.28=
16×0.01=
4.8÷8=
3.5÷0.7=
2.5×8=
0.8×4=
135+398= 5﹣0.5= 0.24×50= 2﹣2÷7=
÷2= 1.25×9×8= += (+)×72=
728﹣299= 0.23= 3.6×25%= 6÷=
8﹣1.3﹣1.7=