13-t=7
t=13-7=6
10+c-1-2=7
c=7+2+1-10=0
10+b-1-7=7
b=7+7-10+1=5
9-s=0
s=9
a=1
所以a,b,c,s,t分别是1,5,0,9,6.
代入后的竖式是:
10503
- 9726
-------
777
13-t=7
t=13-7=6
10+c-1-2=7
c=7+2+1-10=0
10+b-1-7=7
b=7+7-10+1=5
9-s=0
s=9
a=1
所以a,b,c,s,t分别是1,5,0,9,6.
代入后的竖式是:
10503
- 9726
-------
777