《20以內(nèi)帶括號加減法口算練習(xí).doc》由會員分享，可在線閱讀，更多相關(guān)《20以內(nèi)帶括號加減法口算練習(xí).doc（28頁珍藏版）》請在裝配圖網(wǎng)上搜索。

12+( )=16 15+( )=20 ( )+3=12 3+( )=20 16+( )=19 ( )+12=18 3+( )=16 5+( )=14 8+( )=13 ( )+4=16 5+( )=16 8+( )=16 ( )+11=14 ( )-6=13 ( )+14=18 9+( )=17 7+( )=11 ( )-8=9 ( )-8=3 ( )-14=3 ( )+8=12 ( )-11=6 ( )-6=13 ( )+9=15 ( )-6=7 ( )-5=7 ( )-7=16 ( )-9=9 6+( )=11 7+( )=11 19-( )=14 3+( )=16 2+( )=17 15-( )=5 12+( )=16 11-( )=6 9+( )=17 8+( )=16 8+( )=13 16+( )=19 3+( )=20 8+( )=15 6+( )=13 20-( )=12 ( )-8=9 12+( )=16 6+( )=14 ( )-5=7 15+( )=20 19-( )=12 ( )+3=12 6+( )=11 ( )-6=13 11+( )=14 3+( )=20 ( )-8=3 2+( )=17 13-( )=6 8+( )=16 ( )+13=13 11-( )=9 7+( )=14 16+( )=19 ( )-14=3 3+( )=16 15-9=( ) ( )+12=18 16-7=( ) 5+( )=14 ( )-6=7 8+( )=13 18-( )=6 ( )+4=16 5+13=( ) 12+8=( ) ( )-8=8 14-( )=9 ( )+6=13 11-( )=3 8+( )=16 7+( )=11 ( )+11=14 ( )-7=16 19-( )=12 ( )+5=18 ( )+14=18 9+( )=14 ( )-11=6 ( )-9=3 9+( )=17 8+( )=16 ( )+7=20 ( )+8=17 ( )+2=11 ( )+6=14 9+( )=11 8+( )=12 7+( )=12 6+( )=12 5+( )=11 ( )+9=13 ( )+7=12 ( )-7=8 ( )-4=12 ( )-7=12 ( )+8=17 ( )-2=11 ( )+6=14 ( )+7=11 ( )-3=12 ( )+5=12 ( )-7=12 9+( )=11 8+( )=12 17-( )=12 6+( )=12 5+( )=11 15-( )=6 12-( )=5 11-( )=5 13-( )=8 9+( )=13 ( )+5=11 ( )+9=13 ( )+7=12 ( )-7=10 ( )+4=12 ( )+7=12 ( )-8=11 ( )+2=11 ( )+6=14 ( )-7=9 ( )+3=12 ( )+5=12 ( )-7=12 13+( )＝18 15-( )=11 8+( )=12 7+( )=12 20-( )=12 5+( )=11 15-( )=6 ( )+7=12 ( )-8=7 ( )+2=11 ( )+6=14 ( )-7=9 ( )-3=12 ( )+5=12 ( )-7=12 9+( )=11 20-( )=12 7+( )=12 6+( )=12 18-( )=11 15-( )=6 14-( )=6 10+( )=15 11-( )=5 13-( )=8 9+( )=13 ( )+5=11 ( )+9=13 ( )-7=12 ( )+7=14 9+( )=11 8+( )=12 7+( )=12 16-( )=12 5+( )=11 15-( )=6 14-( )=6 12+( )=15 11-( )=5 13-( )=8 9+( )=13 ( )+5=11 ( )+9=13 ( )-7=12 ( )+7=14 ( )+4=12 ( )+7=19 ( )-8=11 ( )+6=14 ( )+7=11 ( )-3=16 ( )+5=12 ( )-7=12 13+( )=18 9+( )=11 8+( )=12 7+( )=12 6+( )=12 5+( )=11 15-( )=6 14-( )=6 12-( )=5 13+( )=20 13-( )=8 9+( )=13 ( )+5=11 ( )+9=13 ( )-7=12 ( )+7=14 ( )+4=12 ( )-6=13 2+( )=15 ( )+2=17 3+( )=18 ( )+8=10 ( )+6=12 ( )+5=13 2+( )=16 ( )-0=15 ( )+9=11 ( )+2=16 ( )+7=15 10-( )=1 ( )-7=13 ( )+7=16 ( )-1=14 1+( )=12 ( )+0=18 ( )+7=19 0+( )=18 ( )+5=12 9+( )=18 ( )-2=12 5+( )=12 19-( )=6 16-( )=9 ( )+7=17 8+( )=9 8+( )=14 ( )+1=15 8+( )=10 ( )-8=2 3+( )=14 ( )+3=14 ( )+6=17 ( )-3=6 ( )+7=7 ( )-7=4 ( )+9=13 14-( )=4 ( )-1=15 ( )+5=11 ( )+6=15 16-( )=14 ( )+2=10 13-( )=7 3+( )=13 13-( )=8 9+( )=16 ( )+3=11 ( )+5=9 1+( )=13 2+( )=19 20-( )=2 ( )-0=14 19-( )=7 19-( )=4 4+( )=16 ( )-5=0 ( )-13=7 16-( )=15 16-( )=5 ( )-4=13 9+( )=13 ( )+3=19 ( )+9=16 7-( )=4 5+( )=11 ( )+0=9 5+( )=9 ( )+4=15 ( )-6=12 4-( )=0 12-( )=7 5+( )=10 ( )+1=6 ( )+4=6 ( )+6=17 ( )+6=16 19-( )=2 4+( )=17 ( )-11=3 19-( )=5 14-( )=11 6+( )=13 ( )+3=13 19-( )=6 13-( )=7 ( )-1=14 ( )-1=15 16-( )=4 ( )+3=18 2+( )=15 ( )+2=17 3+( )=8 ( )+8=10 ( )-6=12 ( )+5=13 12+( )=16 ( )-0=5 ( )+9=11 ( )+2=16 ( )+7=15 10-( )=1 ( )-7=3 ( )+7=16 ( )-1=14 1+( )=12 ( )+3=12 ( )+7=19 0+( )=18 ( )-7=4 ( )+3=17 14-( )=5 ( )-17=1 ( )+0=6 19-( )=6 3+( )=9 19-( )=0 ( )+2=15 ( )+4=7 ( )+3=15 9+( )=14 ( )+6=13 9-( )=0 ( )+9=17 17-( )=8 12+( )=15 19-( )=13 12-( )=5 5+( )=14 16-( )=6 10-( )=4 15-( )=9 13-( )=7 11-( )=6 9+( )=11 11-( )=3 15-( )=10 7+( )=16 5+( )=14 12-( )=6 10-( )=3 18-( )=8 14-( )=5 12-( )=4 13-( )=7 12-( )=7 8-( )=1 1+( )=6 8+( )=9 4+( )=14 9+( )=19 18-( )=7 3+( )=13 11-( )=1 10-( )=2 8+( )=19 4+( )=14 9+( )=18 5+( )=14 18-( )=9 12-( )=6 6+( )=14 12+( )=15 14-( )=6 4+( )=12 15-( )=6 14-( )=9 15-( )=5 8+( )=14 13-( )=6 16-( )=7 14+( )=16 12-( )=2 16-( )=10 11+( )=20 10-( )=10 6+( )=19 4+( )=14 15-( )=5 12-( )=3 3+( )=12 7+( )=14 14-( )=4 19-( )=7 13+( )=15 14-( )=4 15-( )=7 12+( )=18 13-( )=13 16-( )=2 13-( )=5 19-( )=15 7+( )=14 6+( )=11 8+( )=15 18-( )=4 6+( )=16 12+( )=19 13-( )=5 19-( )=9 13-( )=4 3+( )=12 11+( )=16 17-( )=7 16-( )=4 4+( )=12 18-( )=9 15-( )=5 3+( )=11 15-( )=3 10-( )=10 8+( )=16 14-( )=7 19-( )=5 9+( )=17 17-( )=7 6-( )=14 4+( )=12 14-( )=6 5+( )=13 19-( )=2 8+( )=17 15-( )=1 13-( )=2 7+( )=15 8+( )=15 11-( )=1 8+( )=15 14-( )=7 7+( )=12 20-( )=12 14-( )=5 13-( )=9 17-( )=7 9+( )=19 18-( )=7 3+( )=13 11-( )=1 14-( )=7 13-( )=3 12+( )=16 5+( )=14 11+( )=18 11+( )=14 19-( )=9 17-( )=10 5+( )=11 4+( )=12 18-( )=7 12+( )=19 17-( )=4 19-( )=2 16-( )=8 10-( )=8 6+( )=14 16-( )=10 16-( )=7 11-( )=4 12-( )=9 7+( )=17 15-( )=4 16-( )=6 14+( )=18 3+( )=11 12-( )=5 4+( )=11 9+( )=12 15-( )=10 19-( )=1 6+( )=16 8-( )=5 16-( )=8 7+( )=9 3+( )=13 9+( )=14 6+( )=16 1+( )=7 18-( )=10 10-( )=5 9+( )=13 1+( )=8 4+( )=10 5+( )=15 10-( )=2 11-( )=8 8-( )=4 17-( )=8 17-( )=9 4+( )=14 16-( )=10 11-( )=9 13-( )=3 7+( )=7 15-( )=7 14-( )=8 4+( )=12 11-( )=2 14-( )=2 17-( )=7 3+( )=12 11+( )=15 15-( )=5 19-( )=4 11+( )=15 11-( )=6 7+( )=18 17-( )=6 14-( )=10 5+( )=15 11+( )=20 7+( )=15 16-( )=8 11-( )=4 13+( )=18 10-( )=7 9-( )=4 6-( )=6 4+( )=5 19-( )=10 16-( )=2 13-( )=11 15-( )=5 11-( )=2 10-( )=5 3+( )=11 15-( )=8 11-( )=7 11-( )=7 18-( )=3 20-( )=8 4+( )=15 14+( )=19 12+( )=16 6+( )=10 13+( )=20 17-( )=5 10+( )=16 17-( )=9 15+( )=15 6+( )=19 15-( )=9 17-( )=5 4+( )=14 3+( )=12 4+( )=10 14-( )=10 14-( )=10 9+( )=13 15-( )=8 15+( )=20 13-( )=7 14-( )=4 8+( )=15 13-( )=7 19-( )=2 15-( )=9 5+( )=15 19-( )=8 15-( )=3 12+( )=18 13-( )=6 16-( )=4 14-( )=9 6+( )=19 16-( )=2 3+( )=12 18-( )=6 15-( )=9 11-( )=9 12-( )=3 12-( )=2 15-( )=5 5+( )=14 5+( )=11 12-( )=8 13-( )=8 17-( )=3 12-( )=4 7+( )=17 14-( )=6 17+( )=20 5+( )=14 15-( )=8 18-( )=12 10-( )=4 13-( )=5 19-( )=15 12-( )=4 9+( )=18 13-( )=2 9-( )=7 9+( )=14 9+( )=11 9+( )=19 11-( )=6 14-( )=9 16-( )=5 5+( )=15 17-( )=10 11+( )=13 19-( )=6 11+( )=15 12-( )=2 11+( )=15 7+( )=16 9+( )=17 8+( )=15 7+( )=14 17-( )=7 18-( )=6 7+( )=14 11-( )=8 13-( )=5 14-( )=5 18-( )=2 12-( )=5 6+( )=16 6+( )=19 18-( )=4 9+( )=18 15-( )=5 13-( )=5 11-( )=4 10-( )=3 6+( )=13 10-( )=10 5+( )=13 14-( )=3 12-( )=9 9+( )=14 13-( )=8 4+( )=10 17-( )=4 12+( )=18 17-( )=7 13+( )=19 2+( )=11 19-( )=9 2+( )=11 17-( )=3 18-( )=10 16-( )=3 11+( )=15 14-( )=8 11-( )=6 3+( )=15 7+( )=17 5+( )=13 18-( )=9 7+( )=18 18-( )=5 4+( )=19 7+( )=16 4+( )=12 19-( )=8 16-( )=9 8+( )=11 12-( )=1 4+( )=14 14+( )=19 12-( )=8 6+( )=14 9+( )=17 17-( )=1 16-( )=8 11+( )=19 13-( )=1 18-( )=8 8+( )=19 7+( )=16 5+( )=15 4+( )=18 6+( )=13 9+( )=14 16-( )=9 7+( )=16 19-( )=7 6+( )=9 6+( )=14 4+( )=12 19-( )=4 3+( )=11 4+( )=11 14-( )=8 7+( )=14 6+( )=16 4+( )=18 20-( )=16 11+( )=20 18-( )=5 9-( )=3 4+( )=11 9+( )=13 17+( )=20 5+( )=14 11-( )=3 18-( )=9 4+( )=11 9+( )=17 5+( )=11 12+( )=19 13+( )=20 16-( )=4 10-( )=1 18-( )=3 12-( )=6 18-( )=7 17-( )=2 6+( )=16 16-( )=5 13-( )=7 11-( )=10 12-( )=5 16-( )=10 6+( )=16 15-( )=2 7+( )=17 8+( )=11 12+( )=16 19-( )=4 11-( )=10 11-( )=5 5+( )=15 6+( )=16 14-( )=7 4+( )=15 7+( )=14 12-( )=7 3+( )=13 15-( )=9 4+( )=13 5+( )=13 13-( )=6 2+( )=14 13-( )=7 9+( )=19 11-( )=2 15-( )=5 10-( )=7 4+( )=16 20-( )=6 18-( )=3 5+( )=14 9+( )=13 20-( )=10 13-( )=7 11+( )=20 17-( )=7 20-( )=5 6+( )=10 14-( )=7 15-( )=7 12-( )=9 10-( )=1 6+( )=11 20-( )=10 13-( )=8 4+( )=10 7+( )=16 13-( )=3 2+( )=11 16-( )=4 9+( )=18 3+( )=12 2+( )=11 13-( )=2 11-( )=9 11+( )=20 16+( )=20 8+( )=19 6+( )=14 14-( )=3 2+( )=14 11-( )=10 12-( )=2 4+( )=13 20-( )=6 5+( )=16 4+( )=18 9+( )=17 18-( )=3 5+( )=16 15-( )=7 8+( )=18 5+( )=13 9+( )=15 17-( )=8 11-( )=7 5+( )=13 13-( )=3 9+( )=14 14-( )=4 12-( )=7 16-( )=5 20-( )=4 10-( )=10 15-( )=1 12+( )=18 11-( )=10 18-( )=5 6+( )=14 11+( )=18 13-( )=5 12-( )=3 13+( )=19 12-( )=7 18-( )=6 6+( )=14 5+( )=15 18-( )=7 6+( )=10 17-( )=6 19-( )=2 3+( )=12 2+( )=11 9+( )=12 4+( )=18 6+( )=16 17-( )=5 15-( )=10 10-( )=2 17-( )=12 5+( )=11 12-( )=1 9+( )=14 6+( )=11 16-( )=7 17-( )=9 12-( )=1 4+( )=18 8+( )=14 3+( )=12 16-( )=9 18-( )=9 10-( )=1 19-( )=10 15-( )=3 3+( )=19 16-( )=9 12-( )=9 7+( )=14 14-( )=9 13-( )=9 9+( )=16 17-( )=5 3+( )=11 9+( )=18 13+( )=19 14-( )=8 13-( )=3 12+( )=20 12-( )=7 13-( )=8 4+( )=12 8+( )=18 16-( )=6 8+( )=11 17-( )=6 2+( )=16 13-( )=4 19-( )=10 6+( )=20 7+( )=19 9+( )=12 14-( )=5 16-( )=5 15-( )=2 7+( )=13 4+( )=15 11-( )=8 7+( )=13 19-( )=5 12+( )=16 6+( )=19 5+( )=13 10-( )=8 18-( )=2 13+( )=19 9+( )=19 5+( )=11 19-( )=9 19-( )=9 14-( )=0 17-( )=8 15-( )=2 17-( )=11 7+( )=16 12+( )=19 14+( )=18 9+( )=16 12+( )=17 10-( )=6 5+( )=20 14-( )=4 8+( )=11 11+( )=14 10-( )=1 19-( )=8 11+( )=17 10-( )=2 13-( )=4 11+( )=9 12+( )=14 6+( )=11 17-( )=7 19-( )=6 12-( )=8 7+( )=13 11+( )=15 9+( )=17 9+( )=11 18-( )=6 11+( )=4 17-( )=3 14+( )=20 19-( )=10 15-( )=3 3+( )=13 11-( )=2 16-( )=10 13-( )=9 16-( )=6 10-( )=1 18-( )=4 12-( )=2 18-( )=8 18-( )=3 16-( )=6 14-( )=8 7+( )=12 3+( )=15 6+( )=14 16-( )=7 20-( )=10 16-( )=6 3+( )=14 13-( )=1 6+( )=16 13-( )=6 8+( )=15 3+( )=15 2+( )=20 6+( )=13 11+( )=19 3+( )=11 3+( )=13 18-( )=10 19-( )=9 19-( )=6 20-( )=12 6+( )=16 14-( )=12 4+( )=16 16-( )=9 17-( )=8 4+( )=20 4+( )=11 13-( )=7 13-( )=9 15+( )=20 5+( )=16 4+( )=13 11-( )=4 6+( )=10 6+( )=14 12-( )=6 11-( )=5 9+( )=17 15-( )=10 12-( )=5 5+( )=11 11-( )=1 13-( )=9 13-( )=4 17-( )=8 19-( )=7 4+( )=15 9+( )=13 4+( )=14 14-( )=9 9+( )=11 15-( )=10 18-( )=8 16-( )=5 17-( )=8 16-( )=1 14-( )=4 6+( )=19 8+( )=14 7+( )=14 2+( )=11 14-( )=4 11-( )=3 4+( )=9 10-( )=6 5+( )=13 10-( )=4 5+( )=13 3+( )=13 11-( )=5 6+( )=12 19-( )=13 4+( )=11 3+( )=15 15-( )=9 17-( )=5 11-( )=6 12-( )=8 12-( )=3 9+( )=18 16-( )=3 4+( )=14 7+( )=20 4+( )=14 15-( )=8 10-( )=7 12-( )=2 17-( )=9 11-( )=1 15-( )=6 17-( )=3 18-( )=10 7+( )=18 18-( )=9 11-( )=8 2+( )=11 15-( )=9 17-( )=10 4+( )=13 10-( )=8 3+( )=14 6+( )=20 19-( )=3 18-( )=12 19-( )=11 15-( )=15 9+( )=17 16-( )=9 1+( )=20 6+( )=14 8+( )=19 15-( )=6 8+( )=15 4+( )=18 17-( )=9 4+( )=11 12-( )=2 9+( )=14 5+( )=11 3+( )=11 17-( )=10 2+( )=11 9+( )=18 12-( )=4 15-( )=9 2+( )=18 13-( )=3 6+( )=13 18-( )=6 20-( )=8 16-( )=4 6+( )=15 17-( )=14 19-( )=11 19-( )=10 8+( )=14 3+( )=11 4+( )=11 9+( )=12 4+( )=16 11+( )=18 15-( )=3 11-( )=7 5+( )=14 7+( )=13 18-( )=2 14-( )=6 15+( )=20 12-( )=2 20-( )=5 14-( )=4 9+( )=13 10+( )=19 13-( )=7 17-( )=8 4+( )=12 4+( )=16 16-( )=3 12-( )=6 5-( )=14 5+( )=15 9+( )=14 7+( )=13 16-( )=12 17-( )=4 6+( )=18 11-( )=3 20-( )=8 13+( )=19 12-( )=9 18-( )=3 12+( )=19 12-( )=4 10-( )=7 12-( )=3 15-( )=6 11-( )=1 7+( )=18 14-( )=4 19-( )=7 3+( )=15 14-( )=5 15-( )=7 2+( )=18 13-( )=3 16-( )=2 7+( )=16 8+( )=18 18-( )=9 ( )+9=14 ( )+13=17 18-( )=15 3+( )=11 ( )-4=9 7+( )=19 12-( )=4 ( )-3=14 11-( )=9 ( )+9=12 ( )+10=19 13-( )=9 ( )+12=16 5+( )=19 16-( )=14 ( )-5=7 4+( )=13 15-( )=9 2+( )=11 16-( )=8 ( )-6=9 9+( )=18 5+( )=14 ( )-9=9 16-( )=9 ( )+9=13 ( )-3=12 17-( )=15 ( )+10=19 ( )-8=3 ( )-3=13 2+( )=11 15-( )=9 8+( )=19 ( )-7=5 ( )+9=18 2+( )=15 ( )+8=11 3+( )=12 13-( )=7 ( )-9=3 ( )+14=17 ( )-6=5 ( )+12=18 7+( )=19 11-( )=8 13-( )=4 ( )-9=4 4+( )=13 17-( )=9 3+( )=11 ( )+10=18 ( )-8=9 9+( )=19 ( )-3=15 2+( )=14 ( )-3=9 ( )+4=11 ( )+9=18 ( )-2=9 4+( )=17 16-( )=7 ( )-7=8 13-( )=6 ( )+8=12 ( )+14=16 15-( )=13 ( )+7=11 16-( )=13 3+( )=19 11-( )=2 ( )+10=19 12-( )=8 15-( )=6 ( )＋12＝15 ( )－12＝1 3＋( )＝4 15－( )＝3 20－( )＝12 ( )＋2＝3 ( )＋9＝18 ( )＋12＝19 5＋( ) ＝10 ( )－4＝14 14－( )＝2 ( )＋13＝17 9＋( )＝16 5＋ ( )＝7 13－( )＝9 19－( )＝7 2＋( )＝14 ( )＋16＝19 15－( )＝13 ( )＋3＝20 2＋( )＝13 ( )－9＝4 ( )＋9＝11 4＋( )＝8 ( )＋4＝14 10－( )＝2 2＋( )＝9 ( )－5＝8 16－( )＝5 14－( )＝1 9－( )＝1 ( )＋9＝10 10－( )＝8 19－( )＝1 3＋( )＝8 5＋( )＝18 3－( )＝1 18－( )＝11 14＋( )＝16 ( )＋2＝16 ( )－2＝13 10－( )＝4 ( )－3＝2 18－( )＝6 ( )＋10＝17 11－( )＝3 20－( )＝9 ( )－1＝5 ( )＋2＝13 8＋( )＝13 ( )＋7＝8 5＋( )＝17 ( )－8＝6 10＋( )＝17 ( )＋6＝18 11－( )＝8 7－( )＝2 18－( )＝17 ( )－10＝5 8－( )＝6 14－( )＝6 ( )＋6＝12 ( )＋1＝6 10＋ ( )＝12 17－( )＝10 ( )－7＝11 ( )－2＝15 13－( )＝4 ( )＋1＝10 ( )－15＝2 ( )－3＝1 ( )－9＝8 ( )＋4＝20 3＋( )＝18 ( )＋3＝15 5＋( )＝11 18－( )＝3 ( )－5＝2 13＋( )＝16 ( )－2＝9 ( )－5＝1 16－( )＝8 1＋( )＝8 ( )＋1＝7 ( )－2＝18 ( )－4＝16 ( )－5＝9 14－( )＝9 7＋( )＝11 11－( )＝9 14－( )＝8 2＋( )＝18 15＋( )＝19 ( )－2＝7 ( )－5＝10 ( )－9＝10 ( )－13＝7 8＋( )＝10 ( )－15＝5 ( )＋4＝19 8＋( )＝20 ( )＋6＝19 17＋( )＝18 ( )＋6＝17 ( )－8＝9 ( )＋6＝14 ( )－2＝16 1＋( )＝17 ( )＋1＝19 9＋( )＝13 ( )＋5＝7 ( )＋1＝15 10＋( )＝19 ( )－16＝3 ( )－10＝7 ( )－13＝6 12＋( )＝17 19－( )＝17 ( )－5＝5 ( )＋15＝16 2＋( )＝20 ( )＋4＝17 12－( )＝8 ( )－3＝3 3－( )＝2 ( )－2＝4 2＋( )＝12 ( )－1＝5 ( )－16＝4 ( )＋2＝6 ( )－4＝10 ( )－12＝6 19－( )＝4 20－( )＝6 18－( )＝12 16－( )＝2 ( )－1＝7 ( )－11＝7 ( )－3＝10 1＋( )＝12 ( )＋14＝16 1＋( )＝10 ( )－7＝13 16＋( )＝17 ( )－18＝2 ( )＋7＝9 ( )－6＝9 16－( )＝12 ( )＋6＝7 12＋( )＝13 6－( )＝2 20－( )＝10 11－( )＝1 ( )－3＝8 ( )＋2＝19 1＋( )＝5 ( )＋2＝4 13－( )＝3 ( )＋17＝20 3＋( )＝6 ( )＋1＝17 ( )－12＝4 ( )－10＝9 ( )＋1＝20 ( )－3＝6 20－( )＝14 ( )－1＝11 9－( )＝7 ( )＋5＝11 ( )＋4＝7 11＋( )＝20 ( )－16＝2 ( )＋12＝17 7＋( )＝13 11－( )＝2 ( )＋4＝15 17－( )＝6 ( )＋11＝16 ( )＋2＝5 14＋( )＝15 ( )＋10＝20 ( )＋8＝17 ( )－6＝14 11＋( )＝17 17－( )＝15 ( )－2＝2 ( )－1＝2 ( )－10＝4 13－( )＝8 7＋( )＝8 ( )＋3＝10 ( )－5＝11 6－( )＝1 14＋( )＝20 16－( )＝13 4－( )＝1 10＋( )＝15 4＋( )＝5 16－( )＝15 7＋( ) ＝15 ( )＋1＝4 20－( )＝1 2＋( )＝7 6－( )＝5 ( )－3＝16 3＋( )＝20 ( )＋10＝12 10＋( )＝11 5＋( )＝15 ( )＋15＝17 11＋( )＝14 5＋( )＝13 ( )＋3＝7 ( )＋16＝20 5＋( )＝6 12－( )＝1 15－( )＝6 ( )＋1＝9 12＋( )＝16 ( )－4＝4 ( )＋3＝14 ( )＋1＝14 ( )＋4＝8 8－( )＝3 ( )＋10＝11 9＋( )＝18 ( )＋2＝12 ( )－6＝1 ( )－15＝4 ( )－13＝5 ( )－10＝10 ( )－7＝3 17－( )＝8 19－( )＝8 8－( )＝7 13－( )＝5 13－( )＝10 18－( )＝8 ( )－3＝11 ( )＋9＝12 3＋( )＝10 2＋( )＝19 ( )－6＝10 5－( )＝4 19－( )＝2 ( )－13＝1 ( )－1＝9 12－( )＝11 12＋( )＝18 18－( )＝13 16－( )＝9 6＋( )＝9 ( )－11＝3 ( )＋1＝13 ( )＋1＝8 ( )＋9＝20 1＋( )＝18 ( )＋5＝8 ( )＋11＝13 ( )－2＝10 ( )＋3＝5 ( )－1＝12 ( )＋4＝13 ( )－8＝12 ( )＋8＝20 ( )＋8＝12 18－( )＝14 ( )－14＝6 7＋( )＝10 11－( )＝10 5＋( )＝8 ( )－11＝9 13＋( )＝20 ( )＋5＝12 19－( )＝13 8＋( )＝15 4＋( )＝7 ( )－2＝5 13－( )＝2 18－( )＝7 ( )－1＝4 ( )＋11＝20 1＋( )＝13 16＋( )＝20 ( )－3＝12 ( )－7＝8 ( )＋9＝19 ( )＋6＝20 2＋( )＝16 ( )－6＝2 ( )＋14＝18 ( )＋10＝19 ( )＋8＝9 12－( )＝6 ( )＋4＝16 6＋( )＝20 15－( )＝5 ( )＋2＝9 2＋( )＝15 15－( )＝1 ( )－8＝3 11－( )＝5 ( )－6＝8 ( )＋8＝11 ( )－1＝14 8－( )＝4 ( )－6＝6 14－( )＝13 17－( )＝11 7＋( )＝9 6＋( )＝8 6＋( )＝19 16＋( )＝19 ( )＋10＝18 ( )＋4＝5 3＋( )＝16 ( )＋5＝15 ( )－8＝8 ( )＋15＝19 ( )＋4＝9 1＋( )＝7 19－( )＝14 8＋( )＝14 17－( )＝16 16－( )＝7 ( )－1＝10 4＋( )＝20 ( )－17＝3 14＋( )＝17 ( )＋8＝15 17－( )＝2 ( )－8＝5 ( )－5＝3 3＋( )＝5 ( )－7＝9 ( )＋5＝17 11＋( )＝18 2＋( )＝5 14－( )＝12 5－( )＝3 ( )＋5＝18 ( )＋8＝19 20－( )＝5 ( )＋2＝11 ( )－2＝14 6＋( )＝14 ( )－5＝6 ( )－1＝15 17＋( )＝19 ( )＋12＝14 20－( )＝3 ( )－11＝6 9＋( )＝14 9－( )＝3 9＋( )＝19 18－( )＝9 3＋( )＝15 ( )－14＝3 ( )＋3＝18 ( )＋9＝14 ( )－1＝6 7－( )＝3 12－( )＝7 1＋( )＝4 ( )－4＝5 9－( )＝2 1＋( )＝11 4＋( )＝18 ( )－6＝4 9＋( )＝10 11－( )＝4 ( )＋1＝3 5＋( )＝16 9＋( )＝20 ( )＋1＝16 ( )＋19＝20 19－( )＝18 18－( )＝1 ( )＋16＝18 10＋( )＝13 11＋( )＝16 20－( )＝17 15＋( )＝20 13＋( )＝14 19－( )＝6 20－( )＝16 8＋( )＝17 4＋( )＝11 1＋( )＝9 ( )＋14＝17 2＋( )＝8 6＋( )＝16 ( )＋2＝14 8－( )＝2 ( )－1＝18 10＋( )＝16 ( )－10＝3 15－( )＝4 ( )＋5＝13 4＋( )＝11 18－( )＝8 ( )＋5＝9 15－( )＝7 ( )＋8＝19 ( )－11＝9 ( )＋6＝11 6＋( )＝19 ( )－11＝4 1＋( )＝2 ( )－11＝3 ( )＋4＝12 4＋( )＝20 ( )＋10＝13 ( )＋15＝20 ( )＋14＝20 ( )＋12＝16 ( )＋3＝18 ( )＋5＝10 2＋( )＝6 5＋( )＝6 18－( )＝5 8－( )＝7 ( )－8＝1 12－( )＝10 5－( )＝3 6－( )＝5 ( )－5＝6 ( )－10＝10 ( )＋8＝12 6＋( )＝9 ( )＋1＝13 8－( )＝2 16－( )＝11 16＋( )＝19 7－( )＝3 ( )＋1＝9 2＋( )＝19 12＋( )＝18 ( )＋10＝14 ( )－5＝3 ( )＋9＝15 9－( )＝2 2＋( )＝16 ( )－2＝8 ( )－7＝9 ( )＋4＝6 8＋( )＝19 12＋( )＝16 13－( )＝6 10－( )＝5 4＋( )＝16 ( )＋9＝12 ( )－9＝7 ( )－6＝13 ( )＋10＝19 15－( )＝5 10＋( )＝11 ( )＋4＝8 ( )－8