再飞来3只又飞走1只,还有()只。


4 ![]()
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3-2+9=

2+ - =
7-0= 9-9= 5+1+2= 10-5+4=
6+3= 8-5= 2+2= 9-7=
4+3= 7-1= 6-2= 3+3=
8-6= 7+3= 10-8= 9-5=
2+6+1= 9-9+5= 10-7+2=
3+4-2= 10-3-7= 6+4-8=
8-4+2= 5+3-6= 10-4-6=
35 2+69-2 97-6+3
27 3+58 10-6+52
9-3= 3+4= 10-5= 8-2+4= 3+5-6=
4-1= 0+6= 10-0= 10-7+3= 2+4+1=
2+6= 3+5= 10-7= 7-3=
10-4= 4+6= 9-6= 8-4=
8+0= 5+5= 6-3= 9-5=
10-8+5= 3+3+3= 4+5-4=
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93 88+0
6-26 10-7+48
8+2= 9+1= 7+3= 6+4= 5+5=
5-2= 8-4= 9-7= 9+0= 10-7=
6+3= 9-4= 6+5= 2+6= 5+0=
10-8+2= 4+6-5= 9-3-5= 2+0+8=
10-2-3= 10-7+3= 0+7+2= 8-3+5=
3+2= 5+4= 10-7= 8+2= 9-2=
6-3= 7-5= 5-5= 3+3= 8-4=
7+2-8= 10-4+2= 5+2+3= 7-5-1= 8-4+5=
8-3+4= 8-4+5= 7+2-3= 7+3-7= 9-2+3=




7-6= 6+3= 8-5= 3+5=
9+0= 9-6= 10-6= 10-10=
6-2+4= 6+3-4= 8-3-2= 2+3+4=