第7单元 数学广角——植树问题-【优佳好】2023-2024学年五年级上册数学口算计算能力提升（人教版）

单元 7 　 第 1 课时　 植树问题(1) 5 年级 上 R 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　6 ÷ 4 = 1. 5 × 0. 15 = 8 × 0. 25 = 4. 8 × 0. 2 = 4. 8 ÷ 40 = 10 ÷ 0. 5 = 9. 3 ÷ 0. 31 = 1. 7 × 5 = 1. 22 × 3 = 5. 6 ÷ 0. 007 = 8 ÷ 5 = 4. 8 ÷ 1. 2 = 15. 6 ÷ 4 = 0. 15 × 200 = 2. 2 × 4 = 6. 2 ÷ 0. 2 = 4. 8 ÷ 4 = 70 × 1. 5 = 9 × 0. 4 = 7. 5 ÷ 1. 5 = 6. 25 ÷ 5 = 4. 8 × 0. 5 = 12. 5 × 4 = 22. 5 ÷ 1. 5 = 2. 64 ÷ 2 = 7. 2 ÷ 0. 6 = 8. 1 ÷ 2. 7 = 6. 3 ÷ 0. 9 = 1. 5 × 3 = 6. 8 ÷ 4 = 2. 3 × 0. 4 = 4. 9 ÷ 0. 07 = 7. 8 ÷ 6. 5 = 　 　 　 　 　 　 　 　 　 　 22. 96 ÷ 5. 6 = 　 　 　 　 　 　 　 　 　 　 5. 5 × 6. 7 = 3x - x =18　 　 　 　 　 　 　 　 　 15 × 6 - 3x =30　 　 　 　 　 　 　 　 　 5(x -0. 9) = 10 56 单元 7 　 第 2 课时　 植树问题(2) 5 年级 上 R 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　1. 3 × 4 = 5 × 1. 4 = 22 × 0. 8 = 6. 1 × 0. 2 = 0. 18 ÷ 9 = 14 ÷ 0. 7 = 1. 2 × 0. 6 = 2. 4 × 0. 4 = 5. 1 ÷ 3 = 8. 5 ÷ 0. 5 = 12. 5 × 0. 8 = 0. 4 ÷ 0. 25 = 2. 48 ÷ 8 = 8. 7 ÷ 0. 3 = 2 × 0. 56 = 1. 5 × 2. 5 = 6. 12 ÷ 6 = 0. 7 × 1. 3 = 12. 5 ÷ 5 = 4. 8 ÷ 1. 6 = 9. 12 ÷ 3 = 0. 62 ÷ 3. 1 = 7. 3 × 0. 2 = 5. 2 × 0. 03 = 8. 04 ÷ 4 = 22. 4 ÷ 0. 4 = 0. 9 × 1. 2 = 10 ÷ 0. 25 = 5. 05 ÷ 5 = 8. 1 ÷ 0. 03 = 8. 2 ÷ 4. 1 = 18 ÷ 0. 6 = 1. 24 ÷ 4 = 50 × 2. 5 = 7. 2 ÷ 2. 4 = 0. 17 × 0. 6 = 42. 7 ÷ 7 = 0. 96 ÷ 0. 6 = 0. 35 ÷ 0. 7 = 8 × 2. 5 = 0. 83 × 1. 5≈　 　 　 　 　 　 　 　 　 46. 5 ÷ 31 = 　 　 　 　 　 　 　 　 　 44. 9 ÷ 1. 8≈ (得数保留两位小数) (得数保留两位小数) 9x +12x =63 6(x -7) = 4(x -7) 3x +2(9 + x) = 41 66 单元 7 　 第 3 课时　 练习课 5 年级 上 R 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　30. 4 × 2 = 0. 2 × 70 = 1. 9 × 0. 2 = 0. 22 × 0. 4 = 1. 8 ÷ 0. 5 = 1. 6 × 2 = 3. 2 ÷ 2 = 6. 2 ÷ 2 = 8 ÷ 0. 5 = 1 × 0. 01 = 8. 8 ÷ 2. 2 = 0. 86 × 10 = 24 ÷ 0. 6 = 0. 56 ÷ 0. 8 = 9. 6 ÷ 0. 4 = 7. 2 ÷ 0. 36 = 45 ÷ 0. 9 = 20 × 0. 5 = 1. 5 × 0. 5 = 3. 9 ÷ 1. 3 = 0. 78 ÷ 0. 3 = 0. 9 × 0. 4 = 6. 5 ÷ 5 = 0. 97 × 10 = 0. 64 ÷ 0. 32 = 0. 8 × 15 = 0. 68 ÷ 0. 4 = 6. 6 ÷ 3. 3 = 1. 7 × 2 = 32 × 2. 5 = 5. 6 ÷ 1. 4 = 6. 3 ÷ 3 = 0 × 0. 47 = 6. 32 × 0. 4 = 5. 15 ÷ 0. 5 = 8. 4 ÷