第4单元 两位数乘两位数-【优佳好】2023-2024学年三年级下册数学口算计算能力提升（人教版）

单元 4 　 第 1 课时　 口算乘法(1)(教材 P41) 3 年级 下 R 6 × 13 = 2 × 47 = 380 × 2 = 250 × 3 = 43 × 3 = 170 × 5 = 4 × 24 = 16 × 6 = 13 × 6 = 8 × 12 = 11 × 6 = 32 × 4 = 150 × 6 = 6 × 120 = 4 × 15 = 18 × 5 = 6 × 15 = 240 × 4 = 22 × 4 = 140 × 2 = 12 × 7 = 4 × 24 = 18 × 4 = 150 × 4 = 120 × 7 = 38 × 2 = 420 × 3 = 72 × 2 = 51 × 2 = 71 × 4 = 15 × 3 = 250 × 2 = 140 × 3 = 19 × 4 = 230 × 4 = 26 × 3 = 180 × 4 = 120 × 8 = 430 × 3 = 23 × 4 = 54 × 7 = 　 　 　 　 　 　 　 　 　 36 × 8 = 　 　 　 　 　 　 　 　 　 142 × 5 = 370 × 5 = 642 × 3 = 239 × 7 = 62 单元 4 　 第 2 课时　 口算乘法(2)(教材 P42) 3 年级 下 R 12 × 40 = 230 × 30 = 350 × 20 = 240 × 40 = 36 × 20 = 80 × 70 = 24 × 30 = 300 × 10 = 200 × 7 = 50 × 15 = 120 × 40 = 32 × 30 = 400 × 30 = 13 × 50 = 24 × 30 = 31 × 30 = 100 × 40 = 500 × 70 = 18 × 20 = 33 × 200 = 32 × 20 = 34 × 20 = 11 × 700 = 26 × 20 = 12 × 400 = 700 × 20 = 50 × 200 = 120 × 60 = 110 × 70 = 13 × 30 = 320 × 20 = 11 × 80 = 130 × 60 = 160 × 50 = 12 × 400 = 15 × 20 = 24 × 20 = 40 × 150 = 50 × 210 = 62 × 30 = 67 × 8 = 　 　 　 　 　 　 　 　 　 84 × 5 = 　 　 　 　 　 　 　 　 　 130 × 6 = 215 × 4 = 28 × 9 = 409 × 7 = 72 单元 4 　 第 3 课时　 练习课(教材 P43) 3 年级 下 R 52 × 2 = 120 × 3 = 30 × 200 = 16 × 4 = 13 × 30 = 37 × 20 = 24 × 4 = 17 × 5 = 71 × 3 = 420 × 2 = 13 × 20 = 160 × 4 = 16 × 50 = 150 × 30 = 320 × 30 = 210 × 40 = 8 × 12 = 310 × 30 = 74 × 10 = 230 × 4 = 40 × 21 = 30 × 5 = 20 × 170 = 180 × 5 = 15 × 4 = 14 × 200 = 30 × 33 = 140 × 6 = 400 × 20 = 18 × 4 = 220 × 4 = 27 × 3 = 284 + 576 = 　 　 　 　 　 　 　 　 　 905 - 287 = 　 　 　 　 　 　 　 　 　 147 ÷ 2 = 845 × 2 = 380 × 6 = 538 ÷ 4 = 82 单元 4 　 第 4 课时　 两位数乘两位数(不进位)的笔算(教材 P46) 3 年级 下 R 25 × 3 = 80 × 50 = 23 × 30 = 230 × 3 = 19 × 3 = 20 × 90 = 400 × 20 = 13 × 10 = 190 × 5 = 320 × 30 = 15 × 30 = 180 × 4 = 240 × 4 = 81 × 20 = 320 × 20 = 20 × 40 = 40 × 50 = 200 × 50 = 20 × 6 = 16 × 5 = 350 × 2 = 11 × 50 = 140 × 20 = 15 × 40 = 32 × 200 = 50 × 60 = 45 × 2 = 130 × 6 = 380 × 2 = 60 × 90 = 10 × 77 = 70 × 800 = 21 × 13 = 　 　 　 　 　 　 　 　 　 12 × 14 = 　 　 　 　 　 　 　 　 　 24 × 12 = 22 × 24 = 11 × 26 = 41 × 21 = 92