Решение:
- \( 7+11-(15-13+5)=18-(2+5)=18-7=11 \)
- \( 18-2-(20-16)+7=16-4+7=12+7=19 \)
- \( 15+2+3-(14-9)=20-5=15 \)
- \( 19-4-(11-5)+3=15-6+3=9+3=12 \)
- \( 18-(20-2)+19-2=18-18+19-2=0+17=17 \)
- \( 4+11-(17-7)+6=15-10+6=5+6=11 \)
- \( 12-(15-8)+7+2=12-7+7+2=5+9=14 \)
- \( 15+2+3-(19-14)=20-5=15 \)
- \( 10-4+12-(18-9)=6+12-9=18-9=9 \)
- \( 13+6-(19-17)-6=19-2-6=17-6=11 \)
- \( 20-13-(15-9)+19=7-6+19=1+19=20 \)
- \( 2+15-(12+8-13)=17-(20-13)=17-7=10 \)
- \( 5+14+1-(14+2)=20-16=4 \)
- \( 15+2+3-(19-11)=20-8=12 \)
- \( 14-10-(14-6-4)=4-(8-4)=4-4=0 \)
- \( 10+(3-3+2)-3=10+2-3=12-3=9 \)
- \( 11+9-(12-8)-11=20-4-11=16-11=5 \)
- \( 15-3-(12+1-5)=12-(13-5)=12-8=4 \)
- \( (16-8)-(19-11)+20=8-8+20=0+20=20 \)
- \( 11-10+(10-2)+5=1+8+5=9+5=14 \)
- \( 11+8-(16-2+1)=19-(14+1)=19-15=4 \)
- \( (11-11)+(15-7)+4=0+8+4=12 \)
- \( (12+7)+(19-12-6)=19+(7-6)=19+1=20 \)
- \( 15-(20-11)+6+6=15-9+6+6=6+12=18 \)
- \( 12+2+1-(13-4)=15-9=6 \)
- \( 11-3+(9-2)-4=8+7-4=15-4=11 \)
- \( 5+12+3-(14-8)=20-6=14 \)
- \( 13-6-(5+3-7)=7-(8-7)=7-1=6 \)
- \( 17-11-14-(3+17)=6-14-20=-8-20=-28 \)
- \( 10-(4+5)+17-16=10-9+17-16=1+1=2 \)
- \( 19-14+(11-4)+4=5+7+4=12+4=16 \)
- \( 12+1+6+(10-10)=19+0=19 \)
- \( 13+1-(11-8)-9=14-3-9=11-9=2 \)
- \( 5+11+3-(18-18)=19-0=19 \)
- \( 19-8+(14-4-10)=11+(10-10)=11+0=11 \)
- \( (20-13)-(10-5)+5=7-5+5=2+5=7 \)
- \( 7+(18-12)-3+2=7+6-3+2=13-1=12 \)
- \( 20-15+(13-8)+10=5+5+10=10+10=20 \)
- \( 10-(3+2)-(17-13)=10-5-4=5-4=1 \)
- \( 3-(20-19)+4+0=3-1+4=2+4=6 \)
- \( 12+4-(13+3)+10=16-16+10=0+10=10 \)
Ответ: 11, 19, 15, 12, 17, 11, 14, 15, 9, 11, 20, 10, 4, 12, 0, 9, 5, 4, 20, 14, 4, 12, 20, 18, 6, 11, 14, 6, -28, 2, 16, 19, 2, 19, 11, 7, 12, 20, 1, 6, 10.