徐工手脑速算大赛试题

第一届“印像杯”脑力数学小博士大赛预赛试题A组4 编号：_______ 成绩_________

2+2= 6+2= 7+2= 5+2= 2+5= 9-5= 6+1=

3+1= 3+5= 4+1= 4+5= 7-2= 5+1= 8-3=

1+2= 1+3= 8-5= 9-4= 6-1= 3+5= 7-5=

5+3= 7+1= 9-4= 6-5= 6+3= 7-7= 8+1=

7-5+2= 1+5+1= 1+3+5= 9-4+1= 1+5-1= 9-4+3=

6-1+4= 2+2+5= 5+4-5= 6+1-2= 6-5+3= 9-5-2=

6-1+2= 4-2+5= 2+1+5= 9-5-4= 4-3+1= 4+1+2=

7-2+1= 3+5-1= 6-1-5= 4+5-2= 6+1-5= 3-1-2=

3-1+2= 5+2+2= 9-5-3= 2+2+5= 6+3-2= 2+2-3=

2-1+2= 6-5+1= 4+5-5= 6-1+3= 7-2+4= 1+5+3=

1+2+1= 7-2-5= 8-3+2= 4-3+5= 7+2-5= 3+1-3=

4-2-1= 8-5+1= 7-2+1= 6-1+3= 8-3+2= 4+5-2=

3+1-3= 9-4+2= 5+3-2= 7+2-4= 8+1-5= 5+2-1=

4-3+2= 4-3+5= 2+5-2= 8+1-4= 5+2+1= 6-1+4=

6-1+2-5= 2+2+5-4= 6+1-2+3= 3+1+5-4= 4+5-4+1=

7+2-4+1= 5+2-5+1= 2+5+1-5= 8+1-4+2= 5+3-5+1=

1+5-1+3= 7-2+1-5= 8-3+2-5= 5+1+1-2= 8-3+2-5=

9-4+1+1= 6-5+1+5= 9-4+1-5= 1+5+2-5= 7-2+1-5=

7-2+4-5= 8-3+1+1= 4+5-4+2= 1+5-1+2= 9-2-2+1=

9-4+1-5= 8+1-4+3= 7-5+2-3= 6+3-5+1= 5+2+2-4=

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