第3个回答 2008-09-03
一年级的太多了
11-9=15-6=32-2=50+1=
30+2=16-9=11-4=12-6=
12-8=12-3=62-2=4+20=
13-8=11-2=2+30=17-9=
20+6=14-8=5+40=15-7=
15-8=90+2=12-9=11-5=
70+3=5+30=14-9=13-5=
80+4= 12-7= 3+30= 14-7=
51-1= 17-8= 88-8= 13-7=
72-2= 60+3= 11-7= 1+90=
13-9= 12-5= 3+60= 12-4=
1+50= 18-9= 13-9= 90+2=
11-8= 60+4= 11-3= 13-6=
6+8 = 81-1= 67-7= 2+20=
15-9= 14-5= 50+9= 14-6=
30+7= 9+80= 10+4= 5+6=
70+8= 99-9= 4+8 = 39-9=
9+6 = 16-8= 94-4= 8+40=
16-7= 8+10= 20+6= 60+7=