1.58×6.5= 6.93÷3.3= ☆256.4÷12≈
3.6÷0.18=
27×3.01÷27=
2.8-2.8÷7=
4.2÷6=
0.25×40=
0.14×0.3=
4.25×9.9+4.25×0.1=
0.2-0.2×0.2=
20×0.05= 1.8÷6= 0.62÷2= 0.05÷0.5=
2.5×8= 1.95+3.25= 4.8÷12= 21÷0.7=
①700﹣1.5÷7×30
②14.1﹣4.63+1.6﹣2.37
③(+)×9+
④÷[×(﹣)]