第5单元 面积-【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 5 　 第 1 课时　 认识面积(教材 P61) 3 年级 下 R 360 ÷ 9 = 4900 ÷ 7 = 19 × 40 = 58 × 10 = 20 × 43 = 804 ÷ 4 = 6300 ÷ 7 = 240 ÷ 2 = 500 ÷ 5 = 350 ÷ 5 = 18 × 20 = 22 × 40 = 160 × 5 = 255 ÷ 5 = 20 × 54 = 960 ÷ 6 = 40 × 30 = 720 ÷ 8 = 40 × 90 = 52 × 30 = 300 × 2 = 720 ÷ 6 = 40 × 25 = 848 ÷ 4 = 600 ÷ 3 = 600 × 6 = 70 × 80 = 20 × 63 = 12 × 80 = 200 ÷ 5 = 40 × 32 = 186 ÷ 6 = 31 × 27 = 　 　 　 　 　 　 　 　 　 42 × 56 = 　 　 　 　 　 　 　 　 　 66 × 72 = 342 ÷ 2 = 126 ÷ 7 = 423 ÷ 5 = 83 单元 5 　 第 2 课时　 认识面积单位(教材 P63) 3 年级 下 R 350 ÷ 5 = 42 × 30 = 21 × 30 = 140 × 40 = 180 ÷ 6 = 17 × 300 = 50 × 18 = 45 × 20 = 270 ÷ 3 = 999 ÷ 9 = 3000 ÷ 5 = 480 ÷ 6 = 19 × 4 = 160 × 5 = 640 ÷ 4 = 300 × 60 = 217 ÷ 7 = 17 × 300 = 270 ÷ 9 = 210 × 5 = 46 ÷ 2 = 50 × 17 = 40 × 80 = 180 × 5 = 38 ÷ 2 = 560 ÷ 8 = 15 × 40 = 42 × 30 = 20 × 80 = 350 ÷ 7 = 240 ÷ 2 = 25 × 60 = 27 × 36 = 　 　 　 　 　 　 　 　 　 19 × 52 = 　 　 　 　 　 　 　 　 　 38 × 46 = 415 ÷ 5 = 468 ÷ 6 = 875 ÷ 6 = 93 单元 5 　 第 3 课时　 长方形、正方形面积的计算(1)(教材 P66) 3 年级 下 R 8 × 20 = 14 × 30 = 38 × 10 = 33 × 30 = 13 × 70 = 160 ÷ 2 = 34 × 40 = 210 × 7 = 200 × 9 = 140 × 3 = 16 × 20 = 230 × 2 = 25 × 40 = 80 ÷ 8 = 53 × 20 = 360 ÷ 4 = 240 × 3 = 14 × 300 = 40 × 20 = 80 × 40 = 120 × 8 = 1600 ÷ 2 = 350 × 2 = 180 ÷ 9 = 20 × 35 = 15 × 30 = 24 × 40 = 120 × 7 = 45 × 20 = 360 ÷ 4 = 220 × 40 = 53 × 50 = 42 × 28 = 　 　 　 　 　 　 　 　 　 73 × 52 = 　 　 　 　 　 　 　 　 　 88 × 33 = 15 × 67 = 546 ÷ 6 = 198 ÷ 7 = 04 单元 5 　 第 4 课时　 长方形、正方形面积的计算(2)(教材 P67) 3 年级 下 R 30 × 40 = 13 × 400 = 17 × 30 = 16 × 50 = 25 × 40 = 19 × 40 = 515 ÷ 5 = 330 × 3 = 230 × 3 = 93 × 10 = 960 ÷ 4 = 6300 ÷ 3 = 240 ÷ 3 = 312 ÷ 6 = 32 × 30 = 12 × 20 = 810 ÷ 3 = 280 ÷ 4 = 23 × 100 = 70 × 800 = 980 ÷ 7 = 750 ÷ 5 = 125 × 8 = 420 × 30 = 13 × 300 = 360 × 20 = 150 × 4 = 75 × 20 = 840 ÷ 4 = 23 × 40 = 93 × 10 = 20 × 20 = 48 ÷ 2 = 24 × 20 = 52 × 40 = 18 × 30 = 47 × 53 = 　 　 　 　 　 　 　 　 　 252 ÷ 9 = 　 　 　 　 　 　 　 　 　 72 × 36 = 64 × 8 × 4 125 ÷ 5 × 39 768 ÷ 4 ÷ 8 14 单元 5 　 第 5 课时　 练习课(教材 P68) 3 年级 下 R 32 × 30 = 45 × 20 = 75 × 10 = 210 × 40 = 18 × 30 = 42