北京神墨一阶练习题（直加直减一）序号A B C D E F 1 3-1+2= 6-5+2= 6-5+3= 6-1-5= 4-1-2= 1+7+1= 2 3+1-3= 5+4-6= 2+5+1= 8-3+1= 4-3+5= 2-1+6= 3 1+1+2= 8-6+2= 9-5-1= 1+2+5= 1+2+5= 6-1+2= 4 2-1+2= 2-1+2= 3+5-6= 6-1-5= 8-5-1= 1+6+2= 5 4-1+1= 4-3+2= 9-4+3= 8-3+1= 3+1+5= 9-6+5= 6 3-1+2= 2-1+3= 1+2+1= 1+1+5= 8-5+1= 6-5+2= 7 2-1+3= 3-2+3= 2-1+3= 4-3+5= 5+4-5= 7-2+3= 8 1+5+1= 2+2+5= 4-3+2= 3+5-5= 4+5-2= 3-2+2= 9 6-5+1= 2-1+5= 1+2+1= 8-6+6= 2+1+5= 7-6+3= 10 1+2+5= 7-5+2= 4-2-1= 2+6-6= 1+3+5= 6-5+2= 11 4-4+3= 3-1+5= 4-2+5= 5+3+1= 4-3+5= 4-2+7= 12 3-1+5= 6-5+3= 3-1-1= 4-2-1= 2-2+5= 2+5-7= 13 9-4-5= 9-5-3= 2+5+1= 3-1+1= 6-6+6= 9-7+2= 14 7-5+2= 2-1-1= 4-1+5= 3-2+2= 1+5-6= 7-2+3= 15 7-5-2= 2+1+5= 7-2-5= 1+3-1= 2+5+2= 2-1+8= 16 5+4-5= 9-5-3= 8-3+2= 1+1+1= 2+6-3= 7-6+3= 17 3+5+1= 9-4+2= 1+2+5= 4+5-5= 2+5-1= 9-5-2= 18 7-5+2= 1+2-1= 2-1+3= 3+5-1= 1+6+1= 6-5+6= 19 1+5+1= 2+2-2= 4-3+2= 3-2+2= 8-3+1= 2+5-6= 20 4-2+5= 3-2+1= 1+2-1= 2+2-3= 3-2+6= 3-3+6= 北京神墨一阶练习题（直加直减二）序号A B C D E F 1 3+6-3= 2+6-3= 2+5+1= 7-2-5= 9-7+5= 2+7-9= 2 4-2+6= 4-3+6= 2+6-1= 6-1-5= 7-6+2= 1+5+2= 3 2+1+5= 9-6+1= 9-4+1= 5+3-7= 9-5-4= 7-6+2= 4 7+1+1= 1+3-2= 2+6-1= 4-2+1= 2-1+8= 5+2+1= 5 2+5+1= 1+2+5= 4-3+6= 6-5+3= 5+1+3= 1+6-5= 6 5+2+1= 1+6+2= 5+2-2= 3+1-4= 5+2-7= 8-7+3= 7 4-3+6= 3-1+5= 3+5-1= 9-6+1= 7-6+2= 8-6+5= 8 7-6+8= 7-2+1= 6-5+3= 8-6+2= 5+4-3= 7-6+1= 9 6-5+2= 2+5-6= 8-7+3= 2-1+8= 8-6+5= 7-6+7= 10 9-2-5= 5+3-7= 3+6-2= 3+5+1= 2+7-6= 6-1+4= 11 1+8-6= 4+5-6= 4-2+5= 9-7+1= 3+5-6= 8-5+1= 12 8-6+2= 9-7+5= 8+1-3= 9-8+5= 8+1-7= 13 6+3-2= 5+4-9= 8-7+1= 7+2-4= 7-2+4= 14 6-5+3= 6-5+3= 9-8+3= 9-2-6= 4-2+5= 15 4-3+8= 8+1-9= 2-1+8= 7-6+8= 8-2+3= 16 8-1-5= 2-1+7= 3+5+1= 1+3-2= 8-3+4= 17 6-1+2= 8-7+6= 8-7+2= 7-5+2= 3-1+5= 18 8-1-5= 9-5-3= 8-6+5= 4-1...
