15-14+10= 13-8-5
= 11+2+1= 16-3-12=
10-0-2= 2+0+15
= 2+11-7= 1+8+2=
13-8+2= 6+7-13
= 11+8-8= 18-4-1=
3+7+2= 7+3+9
= 14+2-15= 0+1+4=
15+3-1= 1+10+9
= 19-1-1= 3+4+8=
16+1-12= 8+2-3
= 2+12+1= 0+17-14=
第 21 页 共 46
11-2-0= 11+4-7
= 8+2+3= 12-7-1=
3+16-9= 14-1-9
= 16-8-6= 18+1-6=
16-10+5= 7-2+5
= 16+1+3= 17-5-9=
14-8-1= 7+0+9
= 4+10-6= 4-0-0=
2+3-4= 20-3-7
= 4+8-11= 15+3-6=
2+11-10= 20-5-6
= 6+1+11= 17-15-0=
第 22 页 共 46
19-6-12= 8+5+0
= 15+2-11= 10+6-7=
13+1+1= 20-5-3
= 18-1-14= 13-7-0=
0+2+17= 17-10+1
= 16-16+6= 6+0+0=
13+6-3= 12+6-9
= 16-3-9= 8+6-1=
0+2+15= 2+7+11
= 4+12-7= 1+2+14=
4-2+1= 11-4-4
= 2+0+12= 2+3-0=
第 23 页 共 46
1-0+15= 4+1-0= 1+5+6= 8+6-3= 0+5+1= 13-7-6
= 9-7+13= 18-1-3=
11+0-0= 10-4+7
= 13-5-3= 2+15-15=
10+1-5= 12-1-2
= 19-6-8= 19-15+13=
0+14-13= 4+7+9= 4+7+2= 10+1+6= 15-2-7= 19-12-3
= 4+4+0= 18-15-1=
第 24 页 共 46
7+5+3= 5-5+10
= 14-8+0= 16-14+1=
7-7+19= 12+7-9
= 1-0+10= 10-9+15=
2+11-10= 8+2+1
= 9+4+1= 19-1-12=
1+9+1= 1+15-13
= 3-0+1= 18-12-0=
2+9-2= 18-4-14
= 11+8-10= 13+4-2= 19-16-3= 14-12+3
= 15-4-3= 0+7+4= 16-14+17= 0+13-1
= 13+6+1= 0+20+0=
第 25 页 共 46
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