口算题是孩子们学习数学的第一步，孩子们必须熟练的掌握。但往往越是简单的东西，越是容易出错，归根到底就是孩子们比较粗心，看错数字，加减号看错的等等，只有多多练习。下面就整理了一年级数学20以内加减法口算练习，家长们可以直接打印。

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=________6+8=________

2+5=________11-10=________2+6=________10+1=________5+6=________

13+4=________20-1=________2+7=________15-12=________1+2=________

20-3=________17-16=________9+1=________19-6=________5+2=________

14-1=________13+7=________19-4=________3+5=________17+3=________

14+3=________3+8=________8+4=________4+12=________1+5=________

1+14=________9-8=________19-18=________6+13=________13-3=________

3+14=________14+3=________13+5=________10+2=________2+5=________

17-3=________3+7=________12-8=________9-4=________20-13=________

17-1=________12+3=________5+6=________13+6=________6+7=________

5+2=________7+7=________12-11=________5+8=________17-10=________

15-5=________20-1=________18-12=________7+1=________20-6=________

8+6=________3+13=________1+19=________11+6=________2+10=________

7+13=________10-2=________17-16=________1+8=________14+2=________

1+12=________9+5=________11-10=________3+3=________8+2=________

8+12=________3+17=________8+4=________1+4=________2-1=________

9+9=________19-5=________20-18=________8+7=________20-3=________

1+16=________9+1=________9+10=________6+14=________11+9=________

10-2=________18-17=________8-6=________9+6=________18-8=________

13+2=________19-12=________17-12=________7-5=________16-4=________

2+12=________13-1=________16-8=________15-8=________19-16=________

2+8=________14+3=________3+4=________15+5=________19-4=________

5-1=________19-10=________7-1=________6-1=________15-2=________

19-17=________6+13=________11-3=________20-15=________20-1=________

10+4=________7-6=________19-16=________6-3=________5+8=________

20-19=________1+8=________11+7=________9+7=________9-1=________

17-9=________17-7=________18-4=________14-13=________14+3=________

5+13=________13-2=________12-1=________7-2=________5+3=________

10-1=________12-2=________9+5=________13-1=________3+5=________

12+8=________11+7=________16-5=________18-13=________15-5=________

4+5=________13+4=________6+7=________11-10=________18-16=________

5-2=________15+5=________12+1=________19-16=________4+12=________

14-6=________7+8=________16-6=________3+7=________11-9=________

13-7=________19-18=________3+6=________20-9=________1+18=________

4+11=________7+13=________1+7=________13+2=________17-8=________

17-7=________2+5=________3-2=________7+10=________16-10=________

5+6=________14-2=________18-2=________11+7=________10-8=________

16-10=________5+6=________11-10=________18-16=________7+12=________

9-1=________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=________17+3=________1+3=________

12-6=________12+6=________15+2=________5+13=________11-3=________

2+1=________16-14=________9+6=________1+8=________4+12=________

3+13=________7+6=________14-3=________18-5=________19-15=________

12+1=________12-1=________18-1=________13-11=________16+1=________

9-2=________16-7=________16-15=________16+4=________18-14=________

18-5=________20-19=________17-5=________20-16=________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=________19-4=________19-18=________8+5=________

6+13=________17-3=________20-6=________7-4=________1+17=________

7-2=________7+3=________9+3=________20-19=________5-1=________

5-2=________14-2=________14-8=________20-15=________15+4=________

17-6=________6+2=________9-4=________11-2=________16-6=________

14+1=________2+5=________11-8=________2+17=________2+10=________

8+12=________14+3=________8-2=________17+1=________11-9=________

11-8=________2+17=________2+10=________8+12=________20-5=________

18-13=________15-9=________18-15=________1+8=________19-14=________

19-12=________20-13=________10+5=________18-6=________18-14=________

14-8=________12-9=________11-8=________7+8=________8-7=________

7-4=________2+5=________7+10=________16-5=________9-3=________

5-2=________14-3=________8+9=________7+12=________13-1=________

20-17=________7+13=________19-10=________6-1=________15-6=________

12-7=________5-1=________16-13=________3+17=________10+5=________

3+4=________19-11=________14-7=________18-17=________1+10=________

6+8=________13+3=________4+1=________9+8=________2+5=________17-7=________

20-4=________20-19=________1+6=________2+13=________18-3=________

5-2=________6+7=________2+17=________5+4=________12-8=________

11+8=________16-4=________9+11=________15-3=________11+4=________

17-15=________12+1=________10-4=________5+4=________14-8=________

13-11=________15-1=________7+10=________16-1=________11-1=________

7+1=________13-9=________12+5=________19-1=________3+7=________

7+10=________3+4=________20-18=________18-10=________14-10=________

1+17=________20-1=________18-2=________1+7=________1+14=________

2+13=________13+2=________6+3=________2+15=________6+9=________

6-2=________12-2=________2+10=________1+13=________6-5=________

19-16=________8+8=________9+5=________5+2=________10+9=________

6+13=________17-7=________9+11=________5-2=________12+7=________

15-5=________16-15=________8-1=________3+14=________3+5=________

9+6=________19-6=________4+12=________2+18=________20-14=________

3+11=________16-11=________15-9=________10+8=________4+5=________

14-13=________11+2=________7+4=________15-1=________9-3=________

15-5=________17+2=________6+12=________10+1=________11-5=________

17-3=________12+2=________19-18=________20-15=________15-5=________

12-3=________6+4=________19-8=________7+5=________18-11=________

10-4=________19-13=________3+1=________4+10=________2+3=________

8+9=________1+18=________3+15=________12-3=________19-12=________

9+7=________15-1=________14+5=________2+11=________1+5=________

6-1=________4+15=________4+4=________2+10=________17-3=________

15+2=________7+10=________6-5=________18+2=________2+14=________

4+7=________5+4=________13-4=________6+1=________10-9=________

19-11=________14+6=________2+18=________1+12=________16-8=________

10-8=________13+3=________4-1=________8+4=________1+9=________

14-5=________8+1=________4+4=________7+2=________16-2=________

8+9=________7+6=________19-9=________16+4=________3+11=________

16-8=________10-8=________13+3=________4-1=________17+3=________

14-13=________10+9=________19-11=________6+4=________12+6=________

18-5=________1+17=________6-5=________3+16=________1+6=________

17-11=________10-1=________20-1=________14+1=________3+10=________

17-14=________18-7=________7+10=________10-2=________19-10=________

20-4=________8+11=________9-7=________15-10=________4+9=________

19-1=________6+6=________14-3=________18-7=________20-13=________

16+2=________3+4=________14-5=________16-2=________14-1=________

17-2=________7+8=________6+3=________2+14=________20-13=________

4-2=________6+8=________8-1=________20-16=________6+5=________

17-13=________5+12=________5+2=________14+1=________9-2=________

5+6=________11-6=________10+9=________5+8=________4+11=________

18-17=________13-1=________13-2=________5+2=________4+14=________

2+4=________5+3=________3+11=________13-6=________13-5=________

10-9=________14-2=________14-11=________14+2=________1+2=________

8+7=________11+2=________15-10=________15-4=________4+4=________

5+10=________5+8=________9+6=________6-2=________4-3=________

2+18=________8-2=________20-1=________19-15=________7+1=________

5+2=________4+12=________20-7=________1+19=________4+12=________

9-8=________5+10=________19-14=________5+9=________14+6=________

4+12=________9-8=________5+10=________19-14=________14-3=________

6+14=________4+16=________10-3=________10-2=________7-1=________

7+5=________5+10=________19-18=________6-3=________7+4=________

17-15=________4+15=________14-4=________15-2=________14-10=________

16-13=________20-10=________5+2=________1+17=________13-1=________

9-1=________16-14=________4+5=________3+15=________9-2=________

10-5=________12+8=________2+1=________10-4=________1+8=________

18-7=________19-7=________9+5=________3+4=________19-4=________

14+5=________10+7=________14+6=________13+4=________17-6=________

7+9=________12+4=________5+9=________15+2=________9+4=________

9+11=________17+1=________18-8=________1+18=________5+12=________

18-4=________14-3=________4+6=________6+2=________19-5=________

19-9=________2+14=________7+2=________17+3=________19-6=________

4+10=________17-3=________20-8=________18-14=________9-5=________

4+12=________5+6=________1+2=________18-5=________9+6=________

3+1=________9+7=________6-3=________14-13=________3+11=________

1+8=________19-11=________16-4=________17-3=________10+3=________

15-11=________18-16=________19-1=________10-7=________16-12=________

8+3=________10+2=________7+12=________9+7=________19-15=________

3+15=________11-10=________13-2=________15-11=________9+2=________

1+14=________17-7=________5+9=________18-17=________4+12=________

2-1=________10-5=________16-6=________17-12=________7+1=________

9+3=________12+4=________12+5=________19-8=________17-7=________

6+12=________18-15=________19-9=________7+1=________17-6=________

7+12=________2+6=________14+3=________9+2=________4+14=________

13-2=________18-6=________5+10=________14-11=________3+8=________

17+2=________19-8=________18-8=________7-6=________18-15=________

14-1=________16+2=________18-11=________19-16=________16-5=________

7+13=________19-10=________6-1=________15-5=________10+10=________

19-8=________5+9=________6-2=________3+14=________11-2=________

3-2=________2+3=________15-13=________11-10=________20-10=________

10-8=________16-14=________2+7=________3+11=________5+1=________

15-3=________17-1=________15+3=________6+3=________4+11=________

17-5=________6+13=________3+13=________17-11=________14-3=________

5+5=________14-9=________1+7=________18-6=________19-2=________

9+8=________18+2=________15-6=________18-8=________3+11=________

11+1=________16-7=________9+7=________15+3=________7+8=________

3+10=________12+8=________1+6=________11+4=________18-7=________

10-6=________2+14=________1+17=________14+2=________10+9=________