10-2= 9-3= 8-7= 9-4= 6-2= 12-6=
15-4= 10-9= 7-3= 8+5= 9+6=
7+10= 9+5= 16+10= 20+20= 13+2= 16+4= 12+2= 15+6= 2+11= 5+6= 10+10= 2+12= 4+5= 7+9= 5+8= 4+6= 2+9= 3+10=
1
6+5= 3+( )=10 0+( )=4 4+( )=91+( )=8 6+( )=10 9+( )=15
4+( )=8 5+( )=7 10+( )=102+( )=6 3+( )=5 12+( )=15
2+( )=9 4+( )=6 7+( )=8 1+( )=10 8+( )=9 5+( )=10
( )+5=10 ( )+2=5 ( )+6=9( )+8=10 ( )+3=8 ( )+7=14
( )+6=6 ( )+7=8 ( )+0=5( )+1=7 ( )+4=6 ( )+10=20
( )+2=9 ( )+2=8 ( )+3=7( )+3=8 ( )+2=9 ( )+8=16 (
)+3=10 (
)+2=4 (
)+6=7
( )+7=10 ( )+0=6 ( )+8=16
2
9-( )=2 6-( )=1 10-( )=8 7-( )=7 10-( )=5 19-( )=10 3-( )=2 13-( )=2 9-(
)=5 10-(
)=0 8-(
)=2
10-( )=3 5-( )=1 19-( )=10 6-( )=4 7-( )=4 9-( )=7 4-( )=4 8-( )=4 20-( )=10
( )-3=3 ( )-6=2 ( )-7=3 ( )-0=6 ( )-5=5 ( )-3=12 ( )-9=1 ( )-3=10 ( )-3=5 ( )-3=7 ( )+10=20 ( )+6=12 ( )-5=11 ( )-1=8 ( )-12=3 ( )-2=7 ( )-4=3 ( )-2=7
3
( )-6=4 ( )-0=10 ( )-12=3 ( )-3=6 ( )-6=1 ( )-5=4 ( )-7=0 ( )-1=8 ( )+10=30
( )+10=15 ( )-5=10 ( )+6=9 ( )+5=15 ( )-10=10 ( )+7=10 ( )-6=3 ( )-4=6 ( )+5=20 ( )-1=9 ( )+2=8 ( )+8=15 ( )-9=1 ( )+6=10 ( )-4=8 ( )-7=8 ( )-9=1 ( )+8=18 ( )-2=3 ( )-6=7 ( )-7=5 ( )+5=12 ( )+7=14 ( )-6=7 ( )+2=13 ( )+1=10 ( )+5=8 9+4= 5+9= 5+8=
3+9=
4-2= 4+8= 9-6=
7-6=
4
5-4= 9-1=
4+8= 5-3= 7-6= 4+4= 8-5= 2+8= 2+6= 3+3= 6+5= 6-4= 9-3= 8-7= 4+4= 7+8=
8+3= 2+8= 4+7= 6+5= 5-3= 5-1= 6-6= 3-2= 4+1= 5+2= 1+3= 2+7= 8+8= 2+4=
8-7= 5-4= 7-3= 8+9= 5+7= 3+1= 2+9= 6+3= 9-7= 5-1= 8-5= 7-3= 9+9= 8-2=
5
7-5= 7+4= 3+7= 1+1= 2+3= 5-4= 8-1= 8-3= 9-7= 6-3= 4-2= 7-6=
10+10= 1+8=
8-2= 9+4= 6+1= 7+7= 5-1= 1-1= 8-4= 8-6= 8-5= 9-8= 3+5=
7+7= 4+6=
9-5= 9-3= 4-2= 8-2= 9-5= 1+2= 1+7= 11+2= 12+2= 12+4= 3+2= 5-2=
5+5= 9+6= 9+7= 2+6= 9-7= 3+2=
2+2= 9-6= 3+5= 6-2= 9+7= 2+7= 8-5= 2+3= 2+9= 3+8= 8+3= 9+9= 8-6= 4+3= 12+3= 6+6= 10-2= 9-3= 11+3= 9+9= 6+8= 5+5=
10-2=
11-9= 6
5+6= 7+2= 4+7= 6+4= 7-1= 3-1= 5-3= 7+8= 6-6= 6+5= 10-3=
3+9=
7+6= 6+8= 9+7= 10+5= 9-6= 10-8= 5-3= 1+9= 7-2= 6+4= 2-1= 2+12=
3+4= 5+4= 11+2= 3+5= 7+1= 9-2= 12+3= 13-8= 15-4= 8-4= 0+8= 13+1= 8+5= 6+1= 7+3= 10-2= 7-3= 6-4= 9-2= 10-9= 13-10= 5+5= 5+2= 9-4= 8＋1= 2-1= 13-11= 4+4= 3+3= 9-5= 8+8= 4+10= 8+7= 3+12= 5+5= 8+5= 0+9= 10-7= 20-4= 2+3= 3+5= 8+7=
7
2+4= 16-15= 13+2= 5-1= 1＋9= 11+6= 8-4= 610+1= 89－3＝2+6= 9-7= 3+12= 3+4= 5+3= 8-3= 6-2= 0+8= 3+5= 6+1= 6+6= 8+7= 8+9= 10-2= 9+5= 6-4= 9-2= ＋0＝ 3－3= ＋1＝ 4－1= ＋6＝ 5+5=
5+6= 9-3= 8
3 5-4= 3+13=
5-4= 4-4= 7+3= 5+5= 10-9= 15-5=
10-0= 12-2= 13-5= 3+8= 7+9= 6+6= 5+5＝ 5+28+1＝ 4+6＝ 210-4= 1+2= 12-6= 0+8= 2+4= 6-5= 4+4= 5－1＝8-5= 12+5= 13-3= 3+13= 11+5= 1+1= 8+1= 4-1= 9-3= 3+9= ＝ 9-4＝ ＝ 10-5= ＋7＝ 9-5＝
10-7= 11-6= ＋9= 10-5= 10-5= 3+6= 6+7= 6+6= 9
2-1 1 9-7=
3+4= 5+4= 7+7= 6+5= 3+2= 4+6= 7+7= 7+6= 8+6= 3+5= 8+3= 5-4= 2+5= 8-2= 6+8= 2+5= 10-2= 7-2= 9-2= 10-9= 11-6= 5+5= 2+9= 2-1= 3+8= 8+7= 4+6= 5+7= 7+7= 9-3= 5+2= 8+1= 10-2= 3+3= 4-2=
10
6-4= 9-5= 0+8= 3+1= 7+3=
9-4= 2+7= 10-4= 1+2= 5-3= 12-10= 0+8= 10-7= 11-1= 5+5= 9-3= 5+5= 6-0= 9-3= 2+4= 5+5= 8-4= 1+6= 10-5= 4+3= 1+9= 9-7= 1+4= 1+5= 1+7= 1+9= 2+1= 2+3= 6-5= 4+4= 5-1= 6+0= 8+1= 4-1= 9-1= 1+6= 1+8= 2+5= 2+4= 6+8=
11
3-2= 1+9= 3+6= 2+2= 2+5 2+6= 2+7= 3+6= 2+8= 3+1= 3+2= 3+3= 3+5= 3+6= 3+3= 4+5= 6+5= 4+1= 4+2= 4+4= 7-1= 7-4= 7-7= 6-3= 6-6= 5-1= 5-3= 10-6= 3+6= 6+6= 4+9=
4+5= 7-2= 7-5= 6-1= 3+4= 3+7= 4+3= 4+6= 7-3= 7-6= 6-2= 6-5= 5-2= 10-8= 12
6-4= 3+9= 7+8= 9+7= 6+6= 7+6= 5+8= 4+6= 8+8= 7+7= 6+5= 8+5= 9+5= 2+9= 6+6= 6+4= 2+8= 3+7= 4+6= 5+4= 3+6= 4+2= 9+0= 2+7= 3+7= 1+7= 6+4= 7+3= 2+3= 0+10= 5+5=
10-2= 9-5= 6-2= 9+8=
9-3= 8-7= 13
5-4= 10-9= 7-3= 8-4= 7-6= 5+6= 4+8= 7+7= 8+4= 3+8= 8+8= 9+9= 3+9= 6+6= 6+8= 2+9= 3+6= 7+6= 8+5= 4+4= 7+7= 4+6= 3+9= 3+8= 4+8= 9+3= 11+6= 12+3= 15+8= 12+6= 14+4= 9+8= 3+9= 6+6= 5+8= 6+9= 3+7= 7+9= 5+8=
14
3+( )=10 0+( )=4 4+( )=9 1+( )=8 6+( )=10 9+( )=12 4+( )=8 5+( )=7 10+( )=10 2+( )=6 3+( )=5 6+( )=12 2+( )=9 4+( )=6 3+( )=3 7+( )=8 6+( )=9 4+( )=10 1+( )=10 8+( )=9 5+( )=10 6+( )=7 3+( )=10 6+( )=12 ( )+5=10 ( )+2=5 ( )+6=9 ( )+8=10 ( )+3=8 ( )+3=12 ( )+6=6 ( )+7=8 ( )+0=5
( )+1=7 ( )+4=6 ( )+7=12
15
( )+2=9 ( )+2=8 ( )+3=7 ( )+3=8 ( )+2=9 ( )-10=10 ( )-5=5 ( )-6=6 ( )-7=7 ( )+3=10 ( )+2=4 ( )+6=7 ( )+7=10 ( )+0=6 ( )+7=15 9-( )=2 6-( )=1 10-( )=8 7-( )=6 5-( )=2 12-( )=6
7-( )=7 10-( )=5 9-( )=0 10-( )=4 3-( )=2 15-( )=7 9-( )=5 0-( )=0 8-( )=2 10-( )=3 5-( )=1 9+( )=15
6-( )=4 7-( )=4 9-( )=7 4-( )=4 8-( )=4 10-( )=5
16
( )-3=3 ( )-6=2 ( )-7=3 ( )-0=6 ( )-5=5 ( )-3=10 15-( )=8 ( )-10=10 ( )-5=15 9+( )=11 ( )-5=5 ( )-3=8 ( )-9=1 ( )-3=0 ( )-3=5 ( )-5=1 ( )-1=8 ( )+8=15 ( )-2=7 ( )-4=3 ( )-2=7 ( )-6=4 ( )-0=10 ( )-5=11 ( )-3=6 ( )-6=1 ( )-5=4 ( )-7=0 ( )-1=8 ( )+5=12
( )+5=10 ( )+4=7 ( )-3=3 ( )-6=2 9-( )=2 ( )-7=13 ( )-7=0 12-( )=2 ( )-10=2
17
3+( )=10 6-( )=1 ( )-7=3 ( )+2=5 0+( )=4 ( )-11=11 ( )-0=6 10-( )=8 4+( )=9 7-( )=6 ( )-3=0 5+( )=11 12-( )=10 ( )-4=6 9+( )=19 2+( )=12 ( )-8=8 ( )-2=10 ( )+7=8 5-( )=2 ( )-5=5 ( )+6=9 1+( )=8 ( )-8=3 12-( )=8 9+( )=12 ( )-9=3 7-( )=7 6+( )=10 ( )+2=8 ( )-3=4 3+( )=4 ( )+0=12 9-( )=0 ( )+6=7 4+( )=8 ( )-9=1 ( )-3=5 3+( )=15
18
( )+1=4 ( )-7=4 ( )+8=10 9-( )=4 ( )-5=1 ( )-5=12
4+( )=10 ( )+5=5 ( )-2=5 10-( )=2 ( )-6=4 ( )+6=11 ( )-4=2 7-( )=2 10-( )=1 ( )+3=8 5+( )=7 12-( )=6 ( )+8=16 ( )+7=14 ( )+5=10 ( )+3=9 2+( )=9 ( )-7=2 ( )-3=0 6-( )=2 ( )-9=1 3-( )=2 10-( )=4 ( )-1=8 10+( )=10 ( )+7=8 ( )-2=8 5+( )=9 ( )+5=7 10-( )=3 ( )-2=7 9-( )=5 20-( )=8
19
( )+3=3 4+( )=10 ( )-9=1 ( )-3=4 8-( )=2 ( )-6=5 10-( )=5 ( )-7=2 5+( )=8 ( )+2=7 ( )-6=1 8+( )=13 ( )+1=7 4+( )=4 ( )-0=10 9-( )=1 ( )+4=6 ( )-5=3 5+( )=10 ( )+7=14 ( )-5=10 ( )+8=13 ( )+6=12 ( )+5=10 ( )+5=10 ( )-6=4 4+( )=6 10-( )=3 9-( )=8 12-( )=5 4+( )=5 ( )+5=6 ( )-4=2 8-( )=2 ( )+6=6 ( )+9=18 5+( )=11 ( )+8=13 ( )+5=10
20
( )-4=3 6+( )=7 6-( )=3 ( )+3=9 1+( )=8 9+( )=11 ( )+2=9 ( )-2=4 7-( )=7 2+( )=10 3+( )=5 ( )+2=11 0-( )=0 10-( )=3 ( )+2=7 0+( )=5 ( )-2=7 ( )-5=13 2+( )= 8 9-( )=1 5+( )=13 5+( )=16 3+( )=8 7+( )=15 9-( )=6 9+( )=18 8+( )=13 8-( )=5 ( )-6=4 ( )+6=12 ( )-6=4 ( )-5=6 ( )-5=8 ( )-5=2 ( )+5=10 ( )-3=11 ( )+7=10 ( )+7=14 ( )+8=15
21
8-5= 5-4= 9+7= 8-6= 0+6= 9+9= 3+5= 6+5= 9+7= 3+10= 9+7= 4+5= 8+8= 7+9= 10-2= 7-2= 6-4= 9-2= 10-9= 9-7= 11-2= 5+5= 5+6= 9-6= 9+8= 8+8= 9+7= 2-2= 4+6= 2+7= 6+6= 8+9= 9-5= 3+9= 4-2= 10-4=
22
3+7= 3+9= 5+9= 8+9= 9+9= 1+2= 5-3= 0+3= 10-7= 4+5= 2+4= 7+8= 6-5= 4+4= 5-1= 8+9= 1+6= 12-6= 8-4= 6+0= 3-3= 8+7= 1+9= 7+9= 10-5= 1+1= 8+1= 9+6= 4-1= 9+6= 9+5= 3+6= 2+7= 8+6= 9-6= 4+4=
23
3+8= 3+8= 5+4= 9+6= 7+9= 2+9= 9+4= 3+8= 3+6= 7+1= 9+8= 8-8= 9+8= 5-4= 8+4= 8-6= 0+8= 3+1= 8+7= 6+7= 9+8= 7+3= 10-6= 7-6= 9+9= 6-6= 12-6= 9-2= 10-9= 5+5= 2+8= 5+3= 9+7= 9-4= 8+6= 12-10= 6+7= 4+16= 12+10=
24
2+7= 9-5= 3+10= 3+12= 4+12= 3+8= 8+9= 13+7= 5+15= 10-4= 11+2= 2+8= 5-3= 0+8= 9+10= 10-7= 2+14= 3+9= 3+7= 6-5= 4+4= 9-6= 6+8= 12+8= 5-1= 1+9= 8+8= 10+20= 4+12= 6+5= 9+9= 9+5= 6+8= 3-3= 1+9= 10-5= 9+8= 1+10= 9+7= 9-7= 6-4= 11-2=
25
8+6= 4+7= 9+3= 7+8= 5+10= 6+9= 3+6= 9+7= 6+6= 9+6= 3+7= 3+4= 5+4= 3+5= 6+7= 8+7= 9+0= 10-2= 9+5= 7+5= 6+5= 9+4= 6+6= 16-6= 7+1= 3+7= 5+8= 12+5= 13+4= 15-8= 8+7= 3+5= 6+7= 9-3= 5+7= 9-6= 8-7= 5+4= 8-2= 9+2= 0+8= 8+8=
26
3+11= 5+12= 6+7= 7+3= 10-2= 9+8= 7-2= 6-4= 9-2= 6+8= 9+5= 10-8= 5+6= 5+3= 9-4= 9+8= 8+5= 4+12= 4+6= 14+5= 12+7= 9+7= 19-5= 20-12= 3+7= 4+16 10-6= 11+8= 2+18= 6+14= 5+3= 0+8= 10-7= 15-13= 6+6= 10-8= 7+4= 2+9= 8+12= 9+7= 20-8= 12-6=
27
6-5= 4+10= 15-1= 1+9= 5+15= 3+12= 18-12= 6+8= 3+11= 11+5= 12+5= 13+6= 10-5= 17-2= 8+12= 12-7= 15-7= 14-1= 9-5= 3+16= 11+4= 11+5= 1+6= 1+17= 9+7= 1+8= 2+12= 6+8= 2+11= 3+14= 4+13=
2+13= 28
12+5= 1+7= 1+9= 9+9= 2+6= 12+4= 8+9= 2+5= 2+6= 5+11= 2+7= 2+8= 2+9= 3+11= 13+3= 7+12= 11+5= 3+10= 3+5= 3+6= 11+11= 3+17= 4+2= 4+4= 4+6= 7-1= 10-0= 12+2= 15+5= 18-8= 7-2= 7-4=
29
3+12= 8+7= 3+14= 10+2= 4+11= 12+6= 4+3= 18-8= 4+5= 16-6= 7+3= 9+9= 7-5 = 7-6=
8+6= 7-7= 9-2= 6-1= 6-3= 6-4= 6-5= 6-6= 12-2= 5-3= 10-6= 10-2= 12-7= 19-9= 12-4= 13-3= 15-7= 17-7= 20-10= 10+10= 3+7= 4+12= 13+3= 10+6= 5+12= 2+12= 8+7= 2+11= 7+11= 6+6=
5-2= 9-9= 10-8= 30
5-1= 7+8= 11-3= 2+( )=10 3+( )=10 9-( )=2 9=7（ ） 3+( ) =10 3+( )=6 2+( )=12 5+( )=9 8+( )=15 5+( )=11 7+( )= 10 6+( )=10 9+( )=11 5+( )=13 ( )-5=5 7+( )=14 8+( )=10 5+( )=10 14-( )= 9 17-( )=10 12-( )=5 4+( )=11 9+( )=11 6+( )=12 9+( )=9 7+( )=15 8+( )=12 9+( )=12 4+( )=10 5+( )=10 6+( )=10 17-( )=10 7+( )=12 3+( )=12 13-( )=3 8+( )=11 10+( )=11 12-( )=3 15-( )=5
31
6+8= 9+6= 2+8= 6+9= 3+12= 3+11= 14-6= 5+7= 4+7= 7+9= 15-8= 11-4= 6+9= 8+4= 9+8= 8+5= 9+11= 12-2= 16-7= 13-7= 7+4= 8+3= 17-6= 5+7= 19-8= 8+5= 9+5= 8+6= 7+14= 2+6= 8+2= 4+7= 3+9= 12-8= 5+8= 9+8=
13-3= 2+11= 5+6=
32
3+5= 13-6= 6+9= 9+5= 13-8= 3+10= 4+6= 9+9= 8+7= 4+7= 6+3= 8+8= 12-9= 9-3= 8+3= 5+7= 5+6= 9+8= 6+8= 9+2= 7+4= 5+5= 4+9= 6+5= 10+6= 9+5= 10+4= 6+10= 8+5= 11-5= 14-6= 7+2= 6+5= 6+8= 9+6= 13-3= 6+7= 1+9= 2+12=
33
4+12= 2+13= 6+13= 8+5= 3+6= 8+5= 7+9= 5+7= 12-6= 6+8= 4+7= 5+9= 9+4= 7+8= 8+6= 6+5= 4+9= 5+7= 7+7= 8+4= 3+8= 5+3= 2+7= 6+4= 7+4= 3+6= 7+5= 13-6= 18-9= 11-7= 6+9= 20-10= 13-6= 9-9= 20-1= 19-9= 12-9= 13-10= 15-0=
34
12-2= 16-6= 30-1= 7+5= 0+10= 12-2= 17-9= 13-6= 14-5= 15-6= 18-9= 12-10= 12-9= 12+8= 11-9= 4+8= 15-5= 16-11= 5+14= 16-2= 20-10= 16-4= 7+9= 16-7= 2＋17= 11-5= 30-20= 1+9= 12-7= 10-5= 17-8= 18-1= 17-8= 17+10= 12+5= 14+4= 9-3= 12-10= 15-5=
35
15-7= 10-4= 14+6= 16-9= 14+4= 12+8= 15+5= 16-8= 14-7= 13+7= 12+8= 8+12= 8+6= 14-10= 7+7= 8+8= 14-9= 12-12= 7+5= 14-4= 11+9= 11-6= 8-8= 8+8=
17+1= 10-8= 16-6= 14-2= 15-8= 6+3=5+8= 18-5= 22-12=
9+2= 8+4= 7+5= 6+6= 5+6= 3+12=
36
15-9= 14-8= 12-6= 7-7= 11-6= 13－5= 9+4= 7+9= 15-5= 7＋7= 6+5= 512-9= 16-8= 15-6= 7+7= 14-6= 11-5= 9+6= 8+8= 7+5= 6+6= 6+8= 5+8= 16-9= 11-8= 13-7= 15-6= 12-5= 19-9=
9+8= 5+8= 7+4= 6+9= 5+9= 7+9= 10+10= 12-3= 15-9=
＋7= 37
13-9= 13-8= 14-7= 12-6= 14－5= 20-10= 9+3= 9+8= 7+8= 6＋7= 411-9= 12-8= 16-7= 13-6= 15-5= 25-15= 14-9= 15-8= 17-10= 12-3= 11-4= 20-2= 11-3= 12-4= 13-4= 11-2= 14-10= 13+7= 4+8= 5+7= 2+9= 7+5= 8+6= 4+14= 6+14= 9+9= 2+12=
＋9= 12-3= 38
14-6= 12-5= 11-5= 13-8= 15-6= 12-12= 7+7= 9+9= 9+6= 8+5= 8+9= 13-4= 11-5= 12-6= 14-4= 9-9= 16-9= 15-8= 4+7= 6+6= 8+8= 9+3= 7+7= 9+9= 14-8= 15-6= 16-9= 17-8= 18-9= 20-12= 9+9= 7+5= 8+9= 6+8= 5+9= 13-8= 9-9= 12-10= 15-10=
39
17-10= 16-1= 16-2= 16-3= 16-4= 15-1= 1+11= 1+12= 1+13= 1+14= 1+15= 3+13= 20-10= 19-1= 19-2= 19-3= 19-4= 12+2= 18-5= 18-6= 18-7= 18-8= 18-9= 13+3= 17-5= 17-6= 17-7= 17-8= 17-9= 18-8= 6-2= 6-3= 6-4= 6-5= 6-6= 9-3= 13-10= 26-16= 20-10=
40
16-10= 15-1= 15-2= 15-3= 15-4= 12+2= 2+7= 2+8= 2+9= 2+10= 2+11= 9+5= 15-10= 14-1= 14-2= 14-3= 14-4= 15-13= 1+16= 1+17= 1+18= 1+19= 2+0= 5+15= 19-5= 19-6= 19-7= 19-8= 19-9= 12-10= 2+12= 2+13= 2+15= 2+16= 3+15= 9+7= 7+8= 8+5=
41
2+14= 15-5= 15-6= 15-7= 15-8= 15-9= 3+12= 18-10= 17-1= 17-2= 17-3= 17-4= 20-11= 2+17= 2+18= 3+3= 3+4= 3+5= 6+12= 19-10= 18-1= 18-2= 18-3= 18-4= 20-8= 3+16= 3+17= 4+4= 4+5= 4+6= 8+8= 13-5= 13-6= 13-7= 13-8= 13-9= 14-4= 15-5= 18-10= 19-8=
42
4+7= 4+8= 4+9= 4+10= 4+11= 5+15= 13-10= 12-1= 12-2= 12-4= 12-5= 14-8= 4+12= 4+13= 4+14= 4+15= 4+16= 8+12= 11-1= 11-2= 11-3= 11-4= 11-5= 8+5= 3+12= 3+14= 5+13= 15-4= 16-2= 18-8= 16-6= 18-12= 20-8= 16-8= 19-9= 20-11= 13-10= 12-1= 12-2=
43
12-4= 12-5= 14-8=
44
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