- + =
(答案不唯一)
4+2+10=
18-10-2=
8-2+10=
2+8+10=
20-10-5=
4+2+10=
16+3-7=
8 + 6 – 4 = 9 + 6 + 4 = 5 + 8 + 5 =
8 + 9 – 5 = 8 + 3 + 7 = 17 – 5 + 3 =
3+7= 19-9= 9-6= 7+3= 8-3+12=
6+5= 4+8= 5+8= 5-5= 14+2+3=
10-6= 9-0= 12+4= 18-4= 7+9-3=
5+11= 7+6= 14+0= 6+6= 18-8-3=
19-8= 2+12= 14-3= 7+1=
20-10= 12-2= 15+5= 13+6=
18-4-3= 17+1-5= 16-3+7= 5+13-6=
4+7= 8-6= 9-0= 3+4+5=
8-8= 9+8= 4-1= 5+0+10=
5-4= 9+4= 14-3= 6+7-2=
10-2= 6+7= 18-10= 4+0+9=
=6 =8 =7
+ - =
16- = +
□○□○□=□(支)
9+4= 13+4= 15-5= 7+7=
18-6= 10+10= 8+9= 3+8=
9-7+6= 10-4-2= 5+3-6=
4+10= 17-17= 8+8= 20-9= 5+3+9=
9-0= 14-10= 3+10-7= 15-8+9= 16-8-4=
10-6= 8+5= 10+10= 16-4=
7-7= 3+9= 12-7= 8+8=
8+2+7= 17-10-5= 18-6+2= 6+7-9=
0+4= 10+6= 3+8= 16-5=
19-5= 10-7= 2+9= 4+13=
18-4= 4+9= 18-6= 9+3=
17-6= 9+3= 7+5= 6+4=
6+7-2= 15-2-3= 17-7+3= 9-2+8=
13-57 14-68 11-75
14-713-4 11-213-4 2+613-7
10-512-6 13-715-6 12-6+39+5-6
1+5= 4+3= 9﹣3= 1+2+7=
2+6= 10+1= 8﹣8= 8﹣3+1=
13﹣3= 18﹣10= 6+4= 12﹣2﹣5=
16+0= 10﹣7= 5+4= 10﹣7+6=