小学一年级20以内加减法口算题卡每页100题
1.8 + 4 =26.15 - 7 =51.14 - 8 =76.5 + 7 =2.14 - 6 =27.12 - 5 =52.5 + 8 =77.13 - 4 =3.5 + 9 =28.7 + 4 =53.13 - 6 =78.16 - 9 =4.15 - 6 =29.13 - 9 =54.9 + 2 =79.9 + 6 =5.11 - 5 =30.3 + 8 =55.18 - 9 =80.6 + 7 =6.7 + 9 =31.11 - 9 =56.11 - 6 =81.14 - 5 =7.9 + 5 =32.7 + 6 =57.12 - 9 =82.9 + 8 =8.6 + 8 =33.12 - 4 =58.9 + 7 =83.13 - 8 =9.13 - 5 =34.8 + 7 =59.16 - 7 =84.7 + 7 =10.8 + 3 =35.17 - 9 =60.11 - 2 =85.12 - 7 =11.7 + 8 =36.13 - 7 =61.5 + 6 =86.17 - 8 =12.14 - 8 =37.6 + 6 =62.15 - 9 =87.8 + 8 =13.4 + 8 =38.16 - 8 =63.8 + 5 =88.14 - 9 =14.( )- 6 = 839.6 +( )= 1164.16 -( )= 1389.3 +( )= 1215.2 +( )= 1140.18 -( )= 1265.8 +( )= 1490.( )- 7 = 1016.( )- 12 = 041.6 +( )= 1566.( )- 9 = 491.7 +( )= 1217.9 +( )= 1342.( )- 7 = 1267.18 -( )= 1492.( )+ 3 = 1218.( )- 8 = 843.( )+ 9 = 1368.( )+ 9 = 1893.15 -( )= 819.8 +( )= 1744.14 -( )= 769.( )- 6 = 1094.( )- 3 = 1220.12- 3 + 4 =45.6 - 5 + 14 =70.4 + 9 - 6 =95.4 + 7 - 3 =21.19 - 9 + 7 =46.4 + 9 - 7 =71.3 + 15 - 9 =96.12 - 8 + 5 =22.9 + 6 - 7 =47.13 - 7 - 4 =72.5 + 7 + 4 =97.17 - 9 + 8 =23.11 - 8 + 4 =48.14 - 7 + 5 =73.11 - 4 + 8 =98.18 - 8 - 5 =24.6 + 8 - 9 =49.11 - 7 + 6 =74.15 - 7 - 4 =99.13 + 2 - 6 =25.17 - 8 - 5 =50.12 + 3 + 5 =75.12 - 6 + 8 =100.16 - 6 + 3 =20以内的加减法1.8 + 7 =26.9 + 9 =51.16 - 8 =76.7 + 9 =2.14 - 5 =27.5 + 7 =52.9 + 4 =77.15 - 6 =3.9 + 6 =28.14 - 9 =53.4 + 8 =78.6 + 7 =4.5 + 8 =29.7 + 7 =54.17 - 8 =79.2 + 9 =5.18 - 9 =30.4 + 9 =55.7 + 5 =80.6 + 8 =6.6 + 6 =31.11 - 6 =56.8 + 9 =81.16 - 7 =7.9 + 2 =32.7 + 6 =57.15 - 9 =82.9 + 3 =8.8 + 6 =33.15 - 7 =58.9 + 5 =83.14 - 8 =9.16 - 9 =34.3 + 9 =59.13 - 4 =84.3 + 8 =10.14 - 7 =35.8 + 3 =60.15 - 8 =85.9 + 8 =11.5 + 9 =36.17 - 9 =61.8 + 8 =86.11 - 7 =12.11 - 5 =37.9 + 7 =62.14 - 6 =87.8 + 5 =13.7 + 8 =38.8 + 4 =63.11 - 4 =88.6 + 9 =14.( )+ 9 = 1139.11 -( )= 964.( )+ 6 = 1589.( )- 7 = 515.17 -( )= 940.8 +( )= 1765.15 -( )= 990.5 +( )= 1416.( )- 7 = 741.( )- 9 = 966.3 +( )= 1191.( )- 7 = 917.( )+ 9 = 1342.15 -( )= 667.( )+ 6 = 1292.9 +( )= 1818.( )- 8 = 543.4 +( )= 1268.7 +( )= 1493.( )- 6 = 619.9 +( )= 1644.( )- 7 = 869.( )- 8 = 394.( )+ 7 = 1120.17 - 6 - 7 =45.4 + 5 + 9 =70.6 + 8 + 4 =95.13 - 8 + 6 =21.8 + 8 - 7 =46.11 - 4 + 5 =71.15 - 8 + 9 =96.3 + 7 + 6 =22.10 + 6 - 8 =47.16 - 5 - 6 =72.3 + 8 + 8 =97.16 - 5 - 8 =23.14 - 8 + 8 =48.9 + 7 - 6 =73.12 - 6 + 2 =98.6 + 8 + 3 =24.16 - 7 - 5 =49.2 + 8 + 5 =74.4 + 5 + 2 =99.13 - 4 + 7 =25.4 + 5 + 7 =50.17 - 8 + 3 =75.10 - 5 + 4 =100.12 + 6 - 9 =20以内的加减法1.11 - 4 =26.5 + 9 =51.13 - 4 =76.9 + 9 =2.9 + 5 =27.12 - 4 =52.8 + 8 =77.12 - 5 =3.14 - 6 =28.16 - 7 =53.11 - 3 =78.7 + 9 =4.12 - 9 =29.5 + 8 =54.7 + 7 =79.14 - 9 =5.9 + 8 =30.11 - 6 =55.13 - 7 =80.4 + 9 =6.6 + 8 =31.4 + 8 =56.8 + 6 =81.12 - 8 =7.11 - 8 =32.9 + 6 =57.13 - 5 =82.11 - 9 =8.8 + 5 =33.13 - 9 =58.16 - 8 =83.8 + 7 =9.12 - 7 =34.6 + 9 =59.6 + 7 =84.12 - 6 =10.6 + 6 =35.14 - 5 =60.11 - 7 =85.9 + 7 =11.13 - 6 =36.3 + 9 =61.8 + 9 =86.15 - 7 =12.7 + 8 =37.15 - 6 =62.7 + 6 =87.9 + 4 =13.11 - 5 =38.5 + 7 =63.13 - 8 =88.18 - 9 =14.18 -( )= 939.( )+ 8 = 1164.9 +( )= 1789.11 -( )= 315.( )+ 9 = 1440.13 -( )= 965.( )+ 3 = 1190.( )+ 8 = 1316.14 -( )= 741.( )- 5 = 966.( )- 9 = 691.2 +( )= 1117.( )- 5 = 842.( )+ 9 = 1867.14 -( )= 992.( )+ 7 = 1418.( )- 8 = 843.9 +( )= 1268.( )+ 9 = 1293.( )- 8 = 919.4 +( )= 1144.( )- 4 = 769.16 -( )= 794.5 +( )= 1420.14 - 5 + 3 =45.4 + 4 + 9 =70.7 + 7 - 8 =95.13 - 6 + 6 =21.4 + 5 + 3 =46.14 - 5 + 9 =71.5 + 4 + 8 =96.9 + 7 + 2 =22.14 - 7 + 4 =47.4 + 7 + 4 =72.13 - 8 + 2 =97.13 - 4 + 5 =23.4 + 6 + 6 =48.8 + 6 - 7 =73.14 - 5 + 8 =98.10 + 6 + 1 =24.13 - 5 - 7 =49.14 - 8 + 1 =74.3 + 8 + 7 =99.10 - 8 + 7 =25.7 + 6 + 5 =50.13 - 3 - 8 =75.16 - 6 - 9 =100.6 + 6 - 9 =20以内的加减法1.4 + 7 =26.6 + 9 =51.16 - 7 =76.5 + 7 =2.18 - 9 =27.15 - 6 =52.6 + 7 =77.8 + 9 =3.8 + 7 =28.14 - 8 =53.11 - 5 =78.12 - 5 =4.4 + 8 =29.13 - 7 =54.7 + 8 =79.6 + 5 =5.12 - 3 =30.9 + 9 =55.8 + 6 =80.14 - 5 =6.11 - 6 =31.13 - 4 =56.5 + 8 =81.17 - 8 =7.7 + 9 =32.5 + 6 =57.11 - 7 =82.7 + 6 =8.11 - 3 =33.14 - 7 =58.7 + 5 =83.5 + 9 =9.15 - 7 =34.8 + 8 =59.13 - 5 =84.11 - 2 =10.6 + 8 =35.9 + 5 =60.12 - 6 =85.9 + 4 =11.12 - 4 =36.13 - 6 =61.9 + 7 =86.11 - 4 =12.9 + 8 =37.12 - 7 =62.13 - 8 =87.7 + 7 =13.6 + 6 =38.4 + 9 =63.14 - 6 =88.9 + 6 =14.( )- 8 = 539.( )+ 8 = 1264.( )- 9 = 989.4 +( )= 1315.9 +( )= 1840.( )- 6 = 665.( )+ 8 = 1190.( )+ 6 = 1216.( )- 3 = 841.6 +( )= 1166.17 -( )= 991.16 -( )= 817.12 -( )= 342.( )+ 9 = 1467.( )- 6 = 892.( )+ 6 = 1418.( )+ 9 = 1143.11 -( )= 968.( )- 9 = 793.12 -( )= 519.15 -( )= 744.( )+ 7 = 1369.9 +( )= 1394.3 +( )= 1220.15 - 3 + 4 =45.7 + 6 + 6 =70.12 + 4 - 3 =95.16 - 7 + 7 =21.10 + 5 - 6 =46.6 - 3 + 9 =71.12 - 3 - 6 =96.7 + 4 + 7 =22.18 - 6 - 5 =47.4 + 4 + 5 =72.11 - 6 + 9 =97.13 - 5 - 4 =23.11 - 6 + 8 =48.19 - 4 - 1 =73.5 + 6 + 8 =98.14 - 3 - 3 =24.7 + 6 - 5 =49.17 - 6 + 5 =74.10 + 5 - 4 =99.2 + 6 + 9 =25.11 - 8 - 2 =50.9 + 7 - 1 =75.14 + 5 - 2 =100.18 - 6 + 6 =20以内的加减法
一年级20以内加减法口算题每页120道,总1000道(A4直接打印)
2+18=18-6=16-1=
2+12=5+11=17-7=
5+1=10-1=12+5=
11-2=15+1=19-11=
10+9=16-7=2+15=
16-15=15+3=9-4=
20-1=11-10=6+8=
2+5=2+6=10+1=
17-16=13+4=20-1=
1+2=20-3=2+7=
19-6=15-12=9+1=
14-1=5+2=13+7=
19-4=3+5=17+3=
3+8=8+4=17+3=
17+3=4+12=14+3=
1+14=1+5=3+14=
13-3=10+2=9-8=
12-8=2+5=19-18=
14+3=17-3=9-4=
6+13=13+5=3+7=
12+3=5+6=17-1=
5+2=7+7=6+7=
12-11=20-13=13+6=
15-5=20-1=5+8=
18-12=7+1=20-6=
8+6=3+13=1+19=
17-16=7+13=10-2=
11+6=1+8=14+2=
9+5=2+10=1+12=
8+12=11-10=3+3=
3+17=8+4=8+2=
2-1=1+4=9+9=
8+7=20-18=19-5=
5+6=20-3=17-10=
1+16=9+1=9+10=
10-2=18-17=6+14=
18-8=9+6=8-6=
7-5=13+2=19-12=
11+9=17-12=16-4=
13-1=16-8=2+12=
2+8=15-8=19-16=
19-4=14+3=3+4=
19-17=5-1=15+5=
20-1=19-10=7-1=
6-3=6+13=11-3=
11+7=10+4=20-15=
17-7=7-6=19-16=
14+3=5+8=20-19=
5+13=1+8=9+7=
13-2=9-1=17-9=
6-1=18-4=14-13=
10-1=15-2=12-2=
3+5=9+5=13-1=
(完整版)一年级20以内加减法口算题_A4直接打印_每页100道_编排整齐
11+7=
7+12=
9-1=
10-8=
20-15=
10-9=
20-8=
20-11=
20-5=
20-18=
14+2=
14-10=
6+11=
12+7=
12-10=
14+5=
18-4=
9+8=
6+3=
16-4=
18-12=
1+17=
14+2=
4+4=
10-2= 14-6=
12-6=
12+6=
11-3=
15+2=
5+13=
9+6=
2+1=
16-14=
1+8=
4+12=
3+13=
14-3=
18-5=
7+6=
12+1=
12-1=
19-15=
18-1=
13-11=
16+1=
9-2=
16-7=
16-15=
18-14= 18-5=
16+4=
20-16=
17-5=
20-19=
10-5=
11-4=
1+8=
16-11=
17-5=
6+2=
6+10=
14-9=
18-11=
2+13=
6+8=
13-12=
13-3=
8+5=
19-4=
19-18=
7-4=
6+13=
17-3=
1+17= 20-6=
7-2=
5-2=
7+3=
14-2=
15+4=
14-8=
17-6=
11-2=
20-15=
6+2=
11-8=
9-4=
16-6=
14+1=
2+5=
2+17=
2+10=
8+12=
14+3=
8-2=
17+1=
20-5=
18-13=
11-9=
18-15=
15-9=
1+8=
19-14=
10+5=
19-12=
20-13=
12-9=
18-6=
14-8=
7+8=
18-14=
11-8=
8-7=
17+3=
1+3=
7-4=
2+5=
5-2=
14-3=
8+9=
13-1=
9+3=
7+12=
17-3= 20-19=
5-1=
20-15=
19-18=
12+2=
15-5=
12-3=
6+4=
7+5=
19-8=
18-11=
一年级20以内加减法口算题每页120道-总1000道(A4直接打印)
一年级20以内加减法口算题每页120道-总1000道(A4直接打印)
2+18= 18-6= 16-1=
2+12= 5+11= 17-7=
5+1= 10-1= 12+5=
11-2= 15+1= 19-11=
10+9= 16-7= 2+15=
16-15= 15+3= 9-4=
20-1= 11-10= 6+8=
2+5= 2+6= 10+1=
17-16= 13+4= 20-1=
1+2= 20-3= 2+7=
19-6= 15-12= 9+1=
一年级数学20以内加减法口算题(100道,完整版)
20以内纯进位、退位计算题
8+8= 12-5= 16+2= 4+3= 20-2=
9+10= 19-仁 15+5= 6+6= 5+6=
18-2= 10+7= 7+5= 8+10= 7+3=
20-4= 19-4= 15+2= 16-7= 8+5=
20-6= 1 + 18= 1+13= 7+3= 15-5=
2+17= 8+8= 12-3= 1+16= 20-1 =
1+9= 4+14= 14+2= 18-10= 3+16=
1+14= 1 + 1仁 10+5=
19-12= 2+14=
5+3= 10+8= 13-3= 20-1 = 12-5=
15+3= 8+3= 2+11 = 1+7= 16+2=
17+2= 18+2= 4+16= 12-2= 4+3=
20-2= 6+10= 11+8= 2+18= 9+10=
8+6= 13-4= 3+14= 5+4= 19-1 =
7+1 = 13-2= 8-1 = 16-9= 15+5=
5+5= 10-2= 15+4= 13-5= 6+6=
5+6= 10-3= 17-1 = 15-7= 18-2=
1+12-7= 4-1+8= 15+3-10= 19-11+8=
10+10-4= 10-7-1
= 20-8+1 = 2+1+12=
2+3+11= 15-5-10= 6+8-12= 16+2-7=
2+17-9= 2+18-5= 20-19+13= 8-6+6=
20-17+13= 5+3-4= 1+11-4= 8-8+5=
20以内纯进位、退位计算题
7+7= 7+5= 8+10= 7+3= 5+8=
20-4= 19-4= 15+2= 16-7= 8+5=
20-6= 1 + 18= 1+13= 15-5= 20-3=
2+17= 8+8= 12-3= 1+16= 20-1 =
1+9= 4+14= 14+2= 18-10= 3+16=
(完整版)一年级20以内口算题卡(100X40页)
(完整版)一年级20以内口算题卡(100X40页)
1 / 401 口算题〔20以内纯进位、退位〕
班级: 姓名: 得分: 用时:
7＋7= 7＋5= 8＋10= 7＋3= 5＋8=
20－4= 19－4= 15＋2= 16－7= 8＋5=
20－6= 1＋18= 1＋13= 15－5= 20－3=
2＋17= 8＋8= 12－3= 1＋16= 20－1=
1＋9= 4＋14= 14＋2= 18－10= 3＋16=
1＋14= 1＋11= 10＋5= 19－12= 2＋14=
5＋3= 10＋8= 13－3= 20－1= 12－5=
15＋3= 8＋3= 2＋11= 1＋7= 16＋2=
17＋2= 18＋2= 4＋16= 12－2= 4＋3=
20－2= 6＋10= 11＋8= 2＋18= 9＋10=
8＋6= 13－4= 3＋14= 5＋4= 19－1=
7＋1= 13－2= 8－1= 16－9= 15＋5=
5＋5= 10－2= 15＋4= 13－5= 6＋6=
5＋6= 10－3= 17－1= 15－7= 18－2=
6＋8= 10＋10= 1＋12= 2＋16= 10＋7=
7＋7= 5＋8= 8＋5= 20－3= 2＋17=
15－12＋16= 13－4＋11= 2＋16－6= 5＋4＋10=
16－7＋9= 10＋5－2= 15＋4－7= 15－2＋4=
18－9－5= 20－9＋5= 5－1－4= 18－7－5=
12＋2－12= 14－14＋19= 2＋2＋15= 1＋12－7=
17－17＋17= 19－7＋5= 5＋3＋7= 17－6＋6=(完整版)一年级20以内口算题卡(100X40页)
2 / 402 班级: 姓名: 得分: 用时:
8＋8= 12－5=16＋2= 4＋3= 20－2=
9＋10= 19－1= 15＋5= 6＋6= 5＋6=
18－2= 10＋7= 7＋5= 8＋10= 7＋3=
一年级20以内加减法口算题卡(1000道,可打印)
班级： 姓名：
1
一年级 20 以内加减法口算题卡
2＋7＋3＝ 3＋10＋6＝ 19－17 ＋14＝ 15－6－3＝ 19－6＋3＝
9－4＋1＝ 15－3＋3＝ 5＋4＋ 0＝ 19－8－5＝ 18－3＋3＝
9－7＋4＝ 13＋0－0＝ 5＋4＋ 0＝ 7－5＋5＝ 2＋1－1＝
19－17＋10＝ 1＋16－1＝ 17－7－2＝ 16 －8－ 4＝ 5＋4＋5＝
4＋1＋5＝ 5＋8－4＝ 12－5＋12＝ 8－2＋5＝ 18－3＋4＝
17－2＋0＝ 14－13＋12＝ 9－6＋ 4＝ 14－4－1＝ 6－3＋1＝
19－14＋4＝ 11＋0＋0＝ 10－4－0＝ 18 － 12＋10 ＝ 20－12＋4＝
14－9＋6＝ 12＋1－6＝ 3＋1－ 1＝ 17－14＋5＝ 3－1＋1＝
班级： 姓名：
2
3＋3＋8＝ 19－18＋6＝ 5＋7－ 3＝ 8－4＋1＝ 6＋3＋6＝ 班级： 姓名：
3
6＋5－0＝ 9－7＋6＝ 16－4＋0＝ 9＋1＋6＝ 18－4＋2＝
2＋11＋5＝ 11－7＋6＝ 18－17＋7＝ 9＋0＋7＝ 15－10＋12＝
5＋0＋13＝ 3＋9＋3＝ 15－14＋7＝ 18 －8－ 4＝ 1＋0＋18＝
12－8＋7＝ 9－1＋6＝ 17－7＋8＝ 18 － 11＋11 ＝ 17－10＋2＝
13－8＋8＝ 15－4－0＝ 4＋0＋ 8＝ 3＋1＋12＝ 14－5－1＝
10＋5＋0＝ 19－12＋10＝ 18－1＋0＝ 8＋1－3＝ 20－6＋3＝
16－8＋5＝ 14－8＋6＝ 6＋9－ 4＝ 4＋7＋1＝ 10－5＋10＝
5＋9－1＝ 10－5＋6＝ 17－8＋8＝ 20－10＋2＝ 9＋4＋5＝
6＋4－3＝ 5－1＋5＝ 16－11＋1＝ 5＋7＋2＝ 15－13＋2＝
10－5－1＝ 15＋1－2＝ 1＋4＋ 8＝ 19－14－3＝ 1＋2＋0＝
小学一年级20以内口算题_10页(100道一页)
1 一年级口算（20以内加减法）
班级: 姓名:
4＋3= 3＋9= 12＋2= 6＋13= 18－7=
6＋9= 14＋4= 12＋7= 3＋6= 12＋5=
6＋11= 9＋3= 1＋19= 17＋1= 9－1=
17－2= 17－7= 5＋7= 12＋3= 20－11=
12＋5= 3＋8= 6＋6= 20－7= 3＋11=
17－4= 4＋6= 15－7= 7＋10= 13＋5=
14－2= 20－9= 5＋8= 15＋5= 8＋9=
17－5= 10＋5= 18－5= 5＋6= 10＋1=
17－9= 20－4= 14＋5= 5＋13= 7＋8=
5＋11= 15＋3= 17－9= 2＋6= 4＋4=
11＋2= 10－3= 5＋9= 5＋4= 5＋2=
13＋7= 10＋3= 9＋11= 19－4= 5＋9=
14＋2= 12＋1= 18－11= 20－6= 18－9=
15－2= 16－2= 9＋1= 16－4= 17－2=
2＋17= 8＋11= 18－7= 19－2= 13＋3=
15－5= 4＋3= 9－1= 20－11= 3＋8=
13－10＋10= 10－3＋9= 12＋7－8= 4＋12－13=
一年级20以内加减法口算题每页20道,总000道(a4直接打印)
2+18= 18-6= 16-1=
2+12= 5+11= 17-7=
5+1= 10-1= 12+5=
11-2= 15+1= 19-11=
10+9= 16-7= 2+15=
16-15= 15+3= 9-4=
20-1= 11-10= 6+8=
2+5= 2+6= 10+1=
17-16= 13+4= 20-1=
1+2= 20-3= 2+7=
19-6= 15-12= 9+1=
14-1= 5+2= 13+7=
小学数学一年级(上册)20以内口算题卡
小学数学一年级（上册）20以内口算题卡
一、加法口算题
1. 5 + 4 =
2. 7 + 3 =
3. 8 + 2 =
4. 9 + 1 =
5. 6 + 5 =
6. 10 + 0 =
7. 11 + 2 =
8. 12 + 1 =
9. 13 + 0 =
10. 14 + 3 =
二、减法口算题
1. 7 3 =
2. 8 4 =
3. 9 5 =
4. 10 6 =
5. 11 7 =
6. 12 8 =
7. 13 9 =
8. 14 10 =
9. 15 11 =
10. 16 12 = 三、混合口算题
1. 8 + 3 5 =
2. 9 + 4 6 =
3. 10 + 5 7 =
4. 11 + 6 8 =
5. 12 + 7 9 =
6. 13 + 8 10 =
7. 14 + 9 11 =
8. 15 + 10 12 =
9. 16 + 11 13 =
10. 17 + 12 14 =
四、乘法口算题
1. 2 × 2 =
2. 3 × 3 =
3. 4 × 4 =
4. 5 × 5 =
5. 6 × 6 =
6. 7 × 7 =
7. 8 × 8 =
8. 9 × 9 =
9. 10 × 10 =
10. 11 × 11 =
五、除法口算题
1. 4 ÷ 2 = 2. 6 ÷ 3 =
3. 8 ÷ 4 =
4. 10 ÷ 5 =
5. 12 ÷ 6 =
6. 14 ÷ 7 =
7. 16 ÷ 8 =
8. 18 ÷ 9 =
9. 20 ÷ 10 =
10. 22 ÷ 11 =
（答案将在后续部分给出）
小学数学一年级（上册）20以内口算题卡
六、应用题
1. 小明有8个苹果，小红有3个苹果，他们一共有多少个苹果？
2. 一辆公交车上有12个座位，已经坐了8个人，还剩下多少个座位？
小学一年级20以内口算题-10页(100道一页)
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可编辑 一年级口算（20以内加减法）
班级: 姓名:
4＋3= 3＋9= 12＋2= 6＋13= 18－7=
6＋9= 14＋4= 12＋7= 3＋6= 12＋5=
6＋11= 9＋3= 1＋19= 17＋1= 9－1=
17－2= 17－7= 5＋7= 12＋3= 20－11=
12＋5= 3＋8= 6＋6= 20－7= 3＋11=
17－4= 4＋6= 15－7= 7＋10= 13＋5=
14－2= 20－9= 5＋8= 15＋5= 8＋9=
17－5= 10＋5= 18－5= 5＋6= 10＋1=
17－9= 20－4= 14＋5= 5＋13= 7＋8=
5＋11= 15＋3= 17－9= 2＋6= 4＋4=
11＋2= 10－3= 5＋9= 5＋4= 5＋.
可编辑 2=
13＋7= 10＋3= 9＋11= 19－4= 5＋9=
14＋2= 12＋1= 18－11= 20－6= 18－9=
15－2= 16－2= 9＋1= 16－4= 17－2=
2＋17= 8＋11= 18－7= 19－2= 13＋3=
15－5= 4＋3= 9－1= 20－11= 3＋8=
13－10＋10= 10－3＋9= 12＋7－8= 4＋12－13=