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小学一年级数学练习题

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20以内加减法练习(一)

姓名: 时间: 成绩:

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

20以内加减法练习(二)

姓名: 时间: 成绩:

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

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

12

20以内加减法练习(三)

姓名: 时间: 成绩:

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

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

19

20以内加减法练习(四)

姓名: 时间: 成绩:

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

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

20以内加减法练习(五)

姓名: 时间: 成绩:

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

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

11

20以内加减法练习(六)

姓名: 时间: 成绩:

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

20以内加减法练习(七)

姓名: 时间: 成绩:

16-14 = 2 +12 = 11+ 3 = 19- 5 = 17-14 = 17+ 2 = 4 +14 = 13- 3 = 1 +14 = 16-11 = 12-10 = 19- 8 = 2 + 6 = 19- 5 = 10+ 6 = 2 +15 = 2 +17 = 15-15 = 14-12 = 1 +15 = 1 + 8 = 3 + 2 = 13-12 = 18- 4 = 2 + 5 = 17-12 = 4 - 1 = 15- 3 = 18- 6 =

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

20以内加减法练习(八)

姓名: 时间: 成绩:

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

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

1

20以内加减法练习(九)

姓名: 时间: 成绩:

15-12 = 19-18 = 19-18 = 6 +12 = 10+ 2 = 17- 3 = 7 - 3 = 2 +11 = 11+ 1 = 13-10 = 2 +10 = 0 + 5 = 6 + 2 = 2 +13 = 1 +12 = 18+ 1 = 1 +14 = 17-15 = 7 - 1 = 1 +15 = 3 - 0 = 3 +13 = 5 +12 = 1 +13 = 17- 5 = 8 - 7 = 8 + 0 = 6 - 1 = 5 - 0 =

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

20以内加减法练习(十)

姓名: 时间: 成绩:

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

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

20以内加减法练习(十一)

姓名: 时间: 成绩:

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

20以内加减法练习(十二)

姓名: 时间: 成绩:

3 + 3 = 5 + 1 = 19- 5 = 18-16 = 2 + 6 = 18- 8 = 2 +16 = 8 - 5 = 15+ 1 = 7 - 3 = 5 - 2 = 16-13 = 14+ 3 = 12+ 3 = 1 +16 = 7 - 5 = 5 +10 = 11+ 7 = 7 - 1 = 8 - 2 = 2 + 4 = 1 +16 = 15- 4 = 15-10 = 15- 2 = 15- 4 = 11-10 = 19-19 = 5 +10 =

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

20以内加减法练习(十三)

姓名: 时间: 成绩:

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

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

20以内加减法练习(十四)

姓名: 时间: 成绩:

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

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

20以内加减法练习(十五)

姓名: 时间: 成绩:

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

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

一、在()里填上合适的数。

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

( )-9=9 ( )-8=5 14-( )=6 6+( )=9 2+( )=11 7+( )=15 8+( )=13 ( )+7=12 ( )+5=11 ( )+10=10 15-( )=15 15-( )=5 15-( )=10 15-( )=0 8+( )=16 ( )+7=12 ( )+5=14 16-( )=10 7+( )=14 0+( )=12 5+( )=11 ( )+6=14 8-( )=0 8-( )=8 15-( )=6 ( )+13=13 19-( )=9 6+( )=14 0+( )=0 13-( )=5 8+( )=15 10+( )=18 15+( )=20 0-( )=0 6+( )=14 二、在○里填“>”、“<”或“=”。

6+4○11 6+4+2○6+6 7+8○8+2+6 17○8+8 7+3○20-3-7 4+3+5○14-2 6+7○17-7+4 12○15-3 6+7○8+6 5+8○8+5 8+5○3+9 3+2○20-4 4+6○20-9 17-3○7+7 16-5○6+6 13○7+7 20○10+9 6+7○9+2 5+8○6+9 13-3+5○9+5

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