第2单元 位置-【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 2 　 第 1 课时　 位置 5 年级 上 R 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　0. 28 × 9 = 6. 1 × 0. 8 = 10. 4 × 2 = 4. 2 × 0. 8 = 2. 4 × 23 = 0. 12 × 5 = 500 × 0. 2 = 3. 8 × 5 = 31. 6 × 8 = 4. 2 × 0. 6 = 12. 5 × 4 = 0. 25 × 6 = 0. 47 × 80 = 30 × 0. 01 = 4. 5 × 0. 5 = 2. 7 × 0. 4 = 4. 6 × 0. 8 = 7. 3 × 0. 6 = 5. 1 × 0. 7 = 2. 3 × 0. 4 = 3. 2 × 2. 6 = 0. 65 × 0. 4 = 0. 05 × 0. 8 = 2. 5 × 3 = 2. 7 × 1. 05 = 0. 9 × 2. 03 = 500 × 0. 01 = 1. 25 × 0. 4 = 0. 25 × 0. 8 = 1. 6 × 2. 5 = 8 × 3. 2 = 5. 3 × 0. 4 = 2. 07 × 3. 6 = 　 　 　 　 　 　 　 　 　 7. 36 × 5. 3 = 　 　 　 　 　 　 　 　 　 2. 09 × 7. 6≈ (得数保留一位小数) 3. 78 × 99 + 3. 78 15 × 0. 4 × 25 8. 4 × 101. 3 - 8. 4 × 1. 3 31 单元 2 　 第 2 课时　 练习课 5 年级 上 R 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　0. 8 × 10 = 1. 2 × 0. 4 = 1. 5 × 0. 9 = 0. 7 × 0. 3 = 0. 6 × 12 = 3. 03 × 0. 2 = 6. 2 × 4 = 12. 5 × 0. 8 = 3. 8 × 9 = 140 × 0. 6 = 8. 2 × 0. 6 = 4. 5 × 0. 4 = 5. 2 × 5 = 2. 4 × 0. 7 = 0. 08 × 0. 3 = 1. 5 × 0. 04 = 0. 7 × 0. 6 = 2. 6 × 0. 5 = 0. 72 × 5 = 7. 5 × 0. 4 = 2. 8 × 0. 4 = 4 × 0. 25 = 0. 8 × 50 = 0. 3 × 3. 2 = 0. 16 × 0. 5 = 3. 7 × 0. 4 = 1. 3 × 0. 5 = 12 × 0. 25 = 1. 8 × 0. 04 = 5. 2 × 0. 3 = 12. 7 × 0. 1 = 4. 13 × 0. 4 = 2 × 7. 8 = 7. 23 - 1. 23 = 8. 5 - 5. 8 = 0. 52 + 0. 4 = 59. 8 × 0. 23 = 　 　 　 　 　 　 　 　 　 　 4. 56 × 1. 5 = 　 　 　 　 　 　 　 　 　 　 13. 5 × 4. 5 = 0. 25 × 32 × 0. 125 1. 7 × 1. 4 + 8. 3 × 1. 4　 7. 5 × 102 41 单元 2 　 第 2 单元计算易错专练 5 年级 上 R 1. 直接写出得数。 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　4. 8 × 0. 2 = 9. 3 × 0. 1 = 2. 4 × 0. 6 = 4. 5 × 0. 7 = 0. 3 × 0. 15 = 0. 9 × 0. 7 = 17 × 0. 2 = 0. 8 × 2 = 9. 2 × 8 = 2. 8 × 2 = 0. 4 × 12 = 7 × 2. 2 = 3. 1 × 4 = 12. 2 × 2 = 0. 8 × 2. 6 = 0. 31 × 10 = 7. 2 × 0. 4 = 8 × 0. 2 = 1. 01 × 13 = 2. 3 × 4 = 2. 4 × 0. 5 = 0. 25 × 0. 1 = 7. 8 × 0. 3 = 2. 2 × 0. 4 = 10. 5 × 0. 2 = 10 × 0. 28 = 1. 7 × 0. 5 = 4 × 0. 15 = 3. 2 × 0. 8 = 3. 7 × 0. 4 = 2. 8 × 0. 5 = 4. 13 × 0. 3 = 0. 5 × 1000 = 4. 7 + 2. 3 = 0. 7 × 0. 8 = 5 + 0. 07 = 0. 95 + 0. 05 = 2.