第六单元 正比例和反比例-【优佳好】2023-2024学年六年级下册数学口算计算能力提升（苏教版）

单元六 　 第 1 课时　 认识成正比例的量 6 年级 下 S 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　2. 4 × 712 = 3. 9 × 10 13 = 3 ÷ 6 11 = 6 ÷ 2 3 = 3 4 × 1 9 = 240 ÷ 60% = 0. 7 ÷ 7 10 = 0. 6 ÷ 2 3 = 8 9 × 3 4 = 1 5 ÷ 2 5 = 12 ÷ 3 4 = 12 19 × 5 6 = 2 3 × 2 = 3. 9 × 11 13 = 7 15 × 1. 5 = 42 × 8 21 = 8. 4 ÷ 79 = 4 7 ÷ 3 5 = 1 4 × 4 5 = 2 3 × 15 14 = 9 8 ÷ 3 4 = 20 21 × 4. 2 = 1 6 ÷ 9 5 = 5 6 × 9 10 = 75 × 2% = 52 ÷ 13% = 18 × 50% = 57 ÷ 10 = 5 9 ÷ 2 3 = 7 5 ÷ 4 9 = 180 ÷ 3 5 = 1 2 ÷ 4 = x∶ 23 = 6∶ 24 25　 　 　 　 　 　 　 　 　 　 45∶ x =18∶ 26　 　 　 　 　 　 　 　 　 　 36 x = 54 3 1 6 ∶ 1 4 = x∶ 1 12 1. 2∶ 7. 5 = 0. 4∶ x 4. 5 x = 6 2. 2 73 单元六 　 第 2 课时　 认识正比例图像 6 年级 下 S 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　0. 4 + 35 = 0. 75 - 1 4 = 4 9 - 1 3 = 6 × 25% = 1 8 × 4 = 15 7 × 21 25 = 0. 8 - 3 4 = 0. 4 + 1 5 = 2 3 × 2 7 = 28 ÷ 14 3 = 2 9 × 0. 375 = 10 ÷ 1 10 = 5 6 ÷ 2 3 = 5 ÷ 10 9 = 3 8 × 24 = 1 9 ÷ 8 9 = 3 8 + 1 4 = 3 - 3 4 = 17 20 ÷ 1 5 = 1 4 - 1 5 = 3 11 × 22 21 = 64 ÷ 8 9 = 36 ÷ 60% = 0. 7 × 5 14 = 2. 4 × 23 = 1 2 ÷ 0. 75 = 2 5 ÷ 1 2 = 5 8 ÷ 1 6 = 4 × 75% = 512 ÷ 5 6 = 4 5 ÷ 8 15 = 5 6 × 1. 2 = x∶ 125 = 2∶ 0. 4　 　 　 　 　 　 　 　 　 　 18 x = 10. 8 6 　 　 　 　 　 　 　 　 　 　 x∶ 1 2 = 5∶ 6 0. 9∶ x =1. 2∶ 3. 6 1. 2∶ x =0. 6∶ 4 x∶ 514 = 21∶ 5 8 83 单元六 　 第 3 课时　 练习十 6 年级 下 S 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　2 3 × 15 = 7 10 × 7 = 22 × 4 11 = 7 10 × 1 2 = 3 5 ÷ 3 = 3 4 ÷ 4 = 14 15 ÷ 21 = 5 9 ÷ 10 = 2 3 ÷ 5 7 = 1 5 × 7 4 = 9 2 × 2 3 = 4 ÷ 12 13 = 5 8 ÷ 5 12 = 7 24 ÷ 1 12 = 5 8 × 4 3 = 3. 6 × 2 5 = 5. 2 × 34 = 7 24 × 4 7 = 3 8 ÷ 6 5 = 200 × 80% = 330 ÷ 30% = 38 × 4 5 = 6 7 × 7 9 = 2 3 × 5 6 = 3 4 ÷ 1 3 = 2 3 ÷ 1 7 = 4 9 ÷ 2 = 9 11 ÷ 3 = 1 3 ÷ 3 4 = 5 6 ÷ 25 8 = 12 5 × 4 7 = 5 8 × 4 15 = 10∶ x =150∶ 20　 　 　 　 　 　 　 　 　 x∶ 0. 15 = 3. 6∶ 0. 9　 　 　 　 　 　 　 　 　 4. 5∶ 1. 5 = x∶ 3 1 5 ∶ x =0. 32∶ 4. 8 x 25 = 2. 4 150 x∶ 1. 2 = 5∶ 6 93 单元六 　 第 4 课时　 认识成反比例的量 6 年级 下 S 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　5 8 × 20 = 3 4 ÷ 21 =