用竖式计算下题。148×3=
7-0= 6-0= 7-7= 4-0= 9-0= 10-9=
5-0= 6-1= 9-1= 8-3= 9-6= 4-3=
10-6= 7-5= 9-2=10-10= 9-9= 1-1=
4-2= 10-5= 4-3=2-2= 2-1= 6-5=
6-3= 5-3= 6-6= 8-1= 9-1= 10-4=