402÷6=
4002÷6=
40002÷6=
400002÷6=
4000002÷6=
40000002÷6=
98×9+ 6=
987×9+5=
9876×9+4=
98765×9+3=
987654×9+2=
9876543×9+1=
1÷7+= 49÷0.1= ÷= 0.5﹣+0.5﹣=
60×20%= (+)×24= 40÷(1﹣)= ×=