2019年一年級數(shù)學下冊 20以內加減法練習 人教新課標版.doc
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2019年一年級數(shù)學下冊 20以內加減法練習 人教新課標版 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 = 18-13 = 12+ 7 = 3 + 1 = 3 + 4 = 16-14 = 18- 2 = 5 + 4 = 2 - 2 = 7 - 3 = 6 - 0 = 7 +11 = 13- 3 = 8 - 6 = 0 +18 = 10+ 3 = 18-11 = 17+ 0 = 2 - 2 = 1 + 7 = 6 - 3 = 13+ 1 = 5 +14 = 11+ 0 = 7 - 1 = 0 +10 = 6 - 1 = 2 + 6 = 11-10 = 11+ 3 = 5 +10 = 12-10 = 0 +11 = 5 +10 = 5 - 5 = 19-11 = 17-13 = 2 + 2 = 3 +11 = 10+ 3 = 17- 3 = 1 - 0 = 9 - 5 = 19- 8 = 8 + 0 = 17- 1 = 13-10 = 17+ 0 = 5 - 3 = 9 - 8 = 7 - 3 = 2 - 2 = 14- 2 = 5 - 3 = 0 + 4 = 9 - 8 = 17-14 = 16-14 = 3 +12 = 3 - 0 = 19-15 = 18- 2 = 11+ 2 = 14-12 = 1 + 3 = 5 +11 = 10+ 5 = 11- 1 = 20以內加減法練習(三) 姓名: 時間: 成績: 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 = 12+ 6 = 9 - 3 = 8 - 2 = 17-11 = 11-10 = 7 - 6 = 19- 3 = 15-11 = 7 - 4 = 16-14 = 5 - 2 = 8 - 6 = 15- 2 = 16-13 = 3 +11 = 8 - 7 = 2 +17 = 5 +14 = 14+ 4 = 11+ 3 = 5 +12 = 16-12 = 7 + 2 = 17- 4 = 7 +11 = 18- 7 = 4 + 5 = 19- 5 = 10+ 1 = 2 +15 = 19- 5 = 12-11 = 3 + 3 = 18- 4 = 19-10 = 16-16 = 1 + 8 = 1 +13 = 14- 4 = 18-11 = 18- 7 = 0 +19 = 12+ 1 = 15-11 = 12+ 3 = 18-13 = 6 - 0 = 1 + 7 = 18-16 = 18- 6 = 9 - 1 = 6 - 3 = 13- 1 = 19-15 = 8 - 0 = 6 - 6 = 0 +19 = 9 - 2 = 3 - 3 = 12+ 3 = 2 +11 = 7 - 3 = 13- 2 = 8 - 0 = 1 + 5 = 15+ 3 = 18-15 = 20以內加減法練習(四) 姓名: 時間: 成績: 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 = 2 + 3 = 14+ 0 = 13+ 0 = 0 + 1 = 18-12 = 18- 8 = 0 + 1 = 12-11 = 4 +11 = 12+ 7 = 3 +13 = 14+ 5 = 19- 1 = 14+ 1 = 3 +12 = 12+ 4 = 17-11 = 5 + 3 = 17-11 = 6 +10 = 17-16 = 18- 1 = 2 + 3 = 6 +12 = 12-10 = 5 +10 = 3 + 6 = 17-14 = 11+ 1 = 19-17 = 4 + 5 = 5 - 3 = 19-19 = 4 + 3 = 7 + 1 = 4 - 3 = 3 + 1 = 4 - 2 = 1 + 7 = 13- 1 = 15- 3 = 7 - 1 = 12+ 2 = 1 +10 = 7 +10 = 15-10 = 18- 6 = 1 + 7 = 3 - 2 = 18- 3 = 16-14 = 1 +18 = 13- 0 = 15- 0 = 19-19 = 17+ 0 = 16- 4 = 2 - 2 = 12-12 = 19- 4 = 11+ 2 = 3 +15 = 3 - 0 = 0 + 9 = 4 +10 = 0 +11 = 4 - 0 = 20以內加減法練習(五) 姓名: 時間: 成績: 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 = 3 - 0 = 0 - 0 = 19- 1 = 11-10 = 12-10 = 7 - 3 = 12-11 = 15-12 = 15-11 = 6 +10 = 1 +13 = 4 + 3 = 3 +14 = 2 +13 = 18- 2 = 8 - 4 = 6 - 2 = 9 - 1 = 2 +14 = 10+ 2 = 7 - 4 = 15-11 = 8 +10 = 13- 3 = 1 +12 = 4 +15 = 2 + 4 = 15- 1 = 16- 2 = 10+ 3 = 1 +14 = 16+ 2 = 10+ 7 = 2 + 5 = 2 + 6 = 1 + 2 = 14+ 3 = 11+ 8 = 1 + 1 = 17-16 = 1 + 2 = 5 +14 = 12+ 4 = 18-17 = 12+ 3 = 17-15 = 6 - 1 = 6 - 5 = 6 + 2 = 16+ 3 = 1 +14 = 16+ 1 = 4 +15 = 2 + 3 = 18-13 = 7 - 1 = 15- 1 = 17- 6 = 3 +15 = 1 + 2 = 12+ 3 = 16- 1 = 5 +12 = 15-11 = 19-18 = 11+ 6 = 11+ 2 = 20以內加減法練習(六) 姓名: 時間: 成績: 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 = 6 - 1 = 1 + 0 = 1 +11 = 2 +10 = 0 + 4 = 18-15 = 12- 1 = 15-13 = 5 +14 = 3 + 0 = 1 +15 = 6 - 0 = 8 - 0 = 12+ 7 = 15-11 = 13+ 4 = 0 + 0 = 19- 8 = 13+ 5 = 18- 6 = 18- 4 = 1 +16 = 1 +13 = 9 - 0 = 8 - 0 = 9 - 2 = 2 +10 = 14- 2 = 18- 6 = 19-14 = 12- 2 = 0 +17 = 10+ 6 = 5 + 4 = 18- 6 = 19-19 = 1 +14 = 3 +13 = 17- 5 = 16- 3 = 18- 4 = 7 +11 = 16-13 = 12+ 5 = 10+ 3 = 5 - 1 = 5 + 1 = 6 + 1 = 9 - 5 = 4 + 1 = 9 - 9 = 14-10 = 16- 6 = 13-10 = 3 +14 = 6 - 1 = 15- 5 = 5 + 3 = 15+ 4 = 18- 2 = 19-13 = 11+ 5 = 5 + 3 = 19- 1 = 16-14 = 15- 4 = 19- 8 = 20以內加減法練習(七) 姓名: 時間: 成績: 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 = 7 + 2 = 14-10 = 9 - 6 = 19- 5 = 6 - 5 = 15- 5 = 4 +12 = 10+ 6 = 0 +16 = 16- 2 = 19- 1 = 2 +15 = 2 +12 = 16- 2 = 18-16 = 2 +17 = 10-10 = 19- 7 = 14-13 = 15-15 = 12- 1 = 0 +11 = 7 +11 = 14-12 = 15- 2 = 11+ 0 = 1 + 2 = 1 +15 = 0 +11 = 0 + 9 = 17-10 = 1 + 8 = 15+ 0 = 5 + 0 = 14+ 0 = 3 + 2 = 6 - 1 = 5 + 0 = 16- 1 = 13-12 = 1 + 3 = 9 + 0 = 8 - 7 = 18- 4 = 13-11 = 9 - 7 = 18- 4 = 2 + 5 = 10+ 5 = 3 +11 = 15-14 = 17-12 = 12-12 = 6 +10 = 17-17 = 4 - 1 = 5 - 2 = 2 + 5 = 10+ 8 = 15- 3 = 1 +14 = 6 +12 = 2 - 1 = 18- 6 = 1 +10 = 15- 5 = 9 - 2 = 20以內加減法練習(八) 姓名: 時間: 成績: 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 = 12+ 2 = 10+ 3 = 12+ 4 = 3 +12 = 16+ 2 = 7 - 4 = 19-10 = 14-10 = 11+ 6 = 19-16 = 2 +12 = 7 +11 = 10+ 6 = 2 + 4 = 16+ 3 = 3 +12 = 17- 5 = 19- 3 = 11+ 8 = 1 + 4 = 18- 3 = 1 + 7 = 19- 4 = 14+ 3 = 3 +16 = 15-12 = 4 - 3 = 4 + 4 = 18- 1 = 8 - 8 = 15+ 2 = 14+ 3 = 5 + 3 = 10+ 7 = 17- 3 = 12+ 7 = 10+ 3 = 16- 0 = 3 +16 = 15-14 = 14- 2 = 9 +10 = 15-12 = 5 - 3 = 2 +13 = 18+ 0 = 18- 3 = 8 + 0 = 1 - 0 = 19-19 = 6 - 1 = 6 - 3 = 11- 1 = 13-11 = 1 + 4 = 16- 2 = 14-10 = 14-13 = 11+ 2 = 11- 0 = 13-10 = 14- 2 = 16+ 2 = 10+ 6 = 14- 3 = 4 + 3 = 18-17 = 20以內加減法練習(九) 姓名: 時間: 成績: 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 = 12- 2 = 17- 6 = 1 + 2 = 2 +13 = 13+ 4 = 5 + 2 = 19- 5 = 1 +12 = 9 - 1 = 2 + 1 = 11+ 4 = 18+ 1 = 12-12 = 15- 2 = 7 +12 = 1 +14 = 19-10 = 19-12 = 4 - 1 = 17-15 = 2 + 3 = 16-16 = 1 - 0 = 7 - 1 = 19- 1 = 1 + 4 = 2 + 2 = 1 +15 = 19-18 = 19-18 = 17- 1 = 3 - 0 = 7 - 0 = 7 - 1 = 12-11 = 3 +13 = 0 +10 = 11+ 0 = 8 - 6 = 5 +12 = 19-18 = 15-10 = 17- 1 = 1 +13 = 11+ 8 = 12+ 3 = 16- 1 = 17- 5 = 0 +18 = 18-14 = 17- 6 = 8 - 7 = 13+ 0 = 2 + 2 = 5 + 2 = 8 + 0 = 3 + 6 = 4 +12 = 9 - 5 = 6 - 1 = 2 + 3 = 17+ 2 = 3 +13 = 5 - 0 = 3 - 0 = 11+ 5 = 0 + 4 = 20以內加減法練習(十) 姓名: 時間: 成績: 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 = 19-15 = 9 - 8 = 3 + 6 = 18- 5 = 8 +11 = 5 + 3 = 17+ 1 = 14+ 2 = 3 + 4 = 14-12 = 18- 7 = 4 +13 = 2 + 7 = 15- 1 = 18-18 = 3 +16 = 11-10 = 2 - 2 = 4 + 3 = 16- 6 = 6 +10 = 17+ 2 = 8 + 1 = 8 - 6 = 4 + 2 = 9 - 4 = 10+ 3 = 1 +15 = 6 - 5 = 1 +12 = 13-11 = 17-15 = 14+ 1 = 17-16 = 16- 5 = 18-10 = 15-10 = 1 +18 = 2 - 1 = 10+ 5 = 8 - 8 = 5 + 3 = 1 +17 = 16-15 = 16+ 2 = 2 - 1 = 10+ 3 = 3 +11 = 11-10 = 1 + 7 = 6 + 3 = 2 +12 = 11-10 = 1 +12 = 7 +10 = 12+ 2 = 16-11 = 7 - 7 = 5 +12 = 2 +16 = 7 - 3 = 14- 1 = 11+ 2 = 5 - 3 = 16- 3 = 12+ 1 = 9 - 5 = 20以內加減法練習(十一) 姓名: 時間: 成績: 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 = 7 - 0 = 1 +10 = 15- 5 = 2 + 3 = 19- 9 = 17- 4 = 11+ 2 = 4 - 4 = 16+ 1 = 6 - 2 = 16- 1 = 16+ 3 = 5 - 5 = 18+ 0 = 7 +11 = 5 +12 = 13- 2 = 2 + 6 = 8 - 4 = 16+ 3 = 1 +13 = 4 - 0 = 7 - 2 = 18-10 = 17- 5 = 8 - 3 = 0 +11 = 9 + 0 = 16- 6 = 16- 0 = 2 + 4 = 13+ 3 = 4 - 0 = 3 + 2 = 16-12 = 17- 4 = 0 +16 = 0 + 6 = 19+ 0 = 10+ 4 = 8 - 2 = 3 +11 = 2 + 6 = 11+ 3 = 19- 5 = 2 +11 = 11+ 3 = 10+10 = 16-14 = 9 - 4 = 4 + 3 = 5 - 4 = 7 - 5 = 5 + 4 = 5 - 3 = 17- 3 = 17- 4 = 14- 2 = 2 + 1 = 15+ 3 = 1 + 4 = 19-17 = 7 + 2 = 17-16 = 15- 4 = 15-12 = 14-12 = 20以內加減法練習(十二) 姓名: 時間: 成績: 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 = 14+ 1 = 13- 2 = 3 +14 = 12+ 3 = 10+ 6 = 3 +15 = 13- 2 = 1 +16 = 14+ 2 = 1 +14 = 3 +14 = 7 - 5 = 7 - 1 = 10- 0 = 15+ 1 = 5 +10 = 2 + 5 = 11+ 6 = 8 - 8 = 11+ 7 = 9 - 6 = 10+ 6 = 1 + 0 = 7 - 1 = 17+ 0 = 19- 2 = 15-10 = 8 - 2 = 11+ 0 = 5 + 2 = 4 +10 = 2 + 4 = 2 + 3 = 12+ 3 = 15-14 = 1 +16 = 16- 3 = 18-10 = 17- 4 = 15- 4 = 15+ 2 = 16-14 = 8 +10 = 15-10 = 15- 2 = 3 - 3 = 0 +19 = 15- 2 = 2 +10 = 5 +14 = 8 - 4 = 15- 4 = 7 - 3 = 2 +10 = 7 +11 = 11-10 = 14+ 2 = 12+ 0 = 4 + 3 = 19-19 = 4 +15 = 13- 0 = 12-12 = 5 +10 = 1 + 1 = 19- 3 = 15- 2 = 20以內加減法練習(十三) 姓名: 時間: 成績: 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 = 19- 9 = 3 + 0 = 19- 5 = 12- 1 = 17- 3 = 3 + 1 = 17-12 = 17-16 = 12-11 = 3 +10 = 5 - 1 = 9 - 3 = 10+ 9 = 19- 6 = 2 +10 = 17- 2 = 4 +15 = 3 + 2 = 1 + 1 = 17-14 = 7 - 6 = 16- 5 = 3 +10 = 13+ 6 = 1 + 2 = 6 - 2 = 18- 1 = 0 +11 = 5 +14 = 0 + 7 = 0 + 6 = 19-16 = 0 + 0 = 18-13 = 18- 1 = 0 +11 = 1 +17 = 0 + 2 = 13-10 = 0 + 3 = 1 +15 = 9 - 9 = 10-10 = 3 +12 = 16- 0 = 0 + 0 = 17- 3 = 19- 6 = 2 +13 = 1 +10 = 2 +13 = 5 +12 = 12+ 7 = 8 - 7 = 7 - 4 = 9 + 0 = 3 +12 = 0 +11 = 5 + 1 = 12+ 0 = 18-11 = 1 + 4 = 19- 5 = 1 +15 = 2 + 4 = 16+ 1 = 6 +11 = 20以內加減法練習(十四) 姓名: 時間: 成績: 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 = 15- 4 = 17- 1 = 3 + 5 = 18- 8 = 6 - 4 = 14-10 = 3 + 1 = 9 - 1 = 19-10 = 2 + 2 = 7 + 1 = 19- 6 = 8 - 4 = 2 +11 = 17- 2 = 12+ 1 = 17-14 = 18- 6 = 4 + 3 = 3 +10 = 14-12 = 12- 1 = 2 +16 = 14+ 1 = 16-11 = 13-11 = 2 +14 = 5 +10 = 15+ 2 = 1 +18 = 17-10 = 12+ 1 = 19- 2 = 7 - 6 = 1 + 7 = 6 - 1 = 17+ 2 = 7 - 1 = 7 + 1 = 19-14 = 9 - 2 = 19-18 = 7 - 6 = 1 +11 = 2 +10 = 18- 3 = 10+ 9 = 14+ 4 = 0 + 3 = 17-11 = 18-12 = 18- 5 = 14+ 4 = 0 +12 = 3 +11 = 7 +10 = 7 + 0 = 2 + 6 = 5 +12 = 5 +12 = 18- 3 = 19- 3 = 7 - 4 = 2 + 4 = 7 - 1 = 18-12 = 2 +17 = 20以內加減法練習(十五) 姓名: 時間: 成績: 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 = 0 +17 = 6 - 1 = 16- 5 = 13- 2 = 6 +12 = 15-14 = 7 + 0 = 12+ 7 = 2 +10 = 5 +11 = 6 + 0 = 13-10 = 16-13 = 5 + 2 = 16-14 = 5 +13 = 2 +10 = 12+ 3 = 3 + 1 = 19- 1 = 4 - 4 = 0 +18 = 12+ 5 = 2 +13 = 2 +15 = 19-13 = 18+ 0 = 4 +13 = 9 - 0 = 6 - 5 = 15- 4 = 10+ 2 = 6 +13 = 3 + 6 = 12+ 1 = 1 +18 = 18-11 = 1 + 8 = 4 + 4 = 12+ 4 = 0 +16 = 8 - 2 = 3 +10 = 2 + 1 = 6 - 6 = 3 +13 = 6 - 3 = 4 +13 = 5 + 1 = 7 - 5 = 19-19 = 13+ 2 = 16-14 = 16+ 3 = 13-13 = 6 - 2 = 4 +12 = 10+ 0 = 6 - 2 = 4 - 1 = 16-14 = 6 +12 = 15+ 3 = 12-11 = 4 - 1 = 16-14 = 12+ 4 = 附送: 2019年一年級數(shù)學下冊 20以內的退位減法復習學案 人教版 復習目的 1.復習20以內退位減法的算法,能正確迅速地口算20以內退位減法. 2.通過復習結合加、減法含義分析應用題的數(shù)量關系,正確進行計算. 3.培養(yǎng)學生初步分析、綜合概括等能力,發(fā)展他們初步的學習能力。 教具準備 1.水果式題、應用題的相關課件。 2.20以內退位減法的減法表掛圖。 復習過程 一、復習算法。 課件演示水果式題; 提問:20以內的退位減法,你是怎樣計算的? 讓生暢所欲言后,師肯定他們答案,小結出方法: 1、想加算減:想9加2等于11,11減9等于2,8加5等于13,13減5等于8. 2.用差1得9,差2得8的方法: 減數(shù)與被減數(shù)的個位數(shù)差l得9. 減數(shù)與被減數(shù)的個位數(shù)差2得8. 3.10—2=8 8+1=9 即:11—2=9 lO-5=5 5+3=8 即:15—3=8 師讓他們選擇最易于接受的方法,再演示水果式題的其它題目。 二、復習減法表。 出示20以內退位減法表掛圖.板書:復習20以內退位減法. 師隨意指一道式題,讓生熟練回答。(可采用開火車、舉紅旗、爬山比賽、信鴿投信等多樣形式活躍氣氛) 三、復習加、減法應用題。 讓生觀察圖形,嘗試自己編題.根據(jù)生編題情況,師再出示課本第95頁第6題: 1.蝴蝶和蜻蜒一共有24只,其中蝴蝶有8只,蜻蜒有多少只? (1)讀題,分析已知條件和問題. (2)想想用什么方法算?為什么用減法算?(因為要求蜻蜒有多少只.必須從一共有24只里去掉蝴蝶的只數(shù),所以用減法.) (3)列式解答。 2.有蝴蝶8只,蜻蜒16只,蜻蜒比蝴蝶多幾只? (1)讀題,分析已知條件和問題. (2)想想用什么方法解答,為什么用減法算? 提問;這道題還可以怎樣提問題?(蝴蝶比蜻蜒少幾只?) 為什么也用減法計算? 3.你還能提怎樣的問題呢? 根據(jù)學生編的加法應用題,分析列式解答,并強調為什么用加法來解答。 四、課堂練習。 1、口算題. 退位減法表里隨機抽指. 2.口算 12-8 14-6 12-3 16-9 13-6 11-9 12-4 13-9 14-8 14-5 14-7 11-8 15-6 1l-7 12-7 16-8 13-5 1l-3 18-9 13-8 3.比大?。? 15—7○12—4 16—9○13—8- 配套講稿:
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