第五单元 年、月、日-【优佳好】2023-2024学年三年级下册数学口算计算能力提升（苏教版）

单元五 　 第 1 课时　 认识年、月、日 3 年级 下 S 15 × 7 = 19 × 10 = 230 × 4 = 22 × 40 = 52 × 4 = 390 ÷ 3 = 450 ÷ 5 = 29 × 58≈ 73 × 29≈ 72 ÷ 4 = 38 × 30 = 10 × 88 = 405 ÷ 5 = 42 × 30 = 65 × 20 = 40 × 40 = 26 × 30 = 87 × 62≈ 91 × 48≈ 18 × 30 = 213 ÷ 3 = 20 × 40 = 34 × 20 = 102 × 5 = 120 × 6 = 910 × 3 = 30 × 13 = 453 ÷ 3 = 819 ÷ 9 = 243 + 57 = 24 × 60 = 30 × 32 = 480 ÷ 6 = 74 × 10 = 37 × 20 = 930 ÷ 3 = 45 × 30 = 456 ÷ 3 = 345 ÷ 5 = 480 - 190 = 35 × 26 = 　 　 　 　 　 　 　 　 　 　 388 ÷ 3 = 　 　 　 　 　 　 　 　 　 　 42 × 67 = 　 　 　 　 验算: 836 - 15 × 27 (640 + 160) ÷ 8 525 ÷ 5 + 136 13 单元五 　 第 2 课时　 认识平年和闰年 3 年级 下 S 40 × 30 = 42 × 40 = 15 × 30 = 75 ÷ 5 = 500 ÷ 5 = 50 × 18 = 43 × 30 = 816 ÷ 8 = 142 ÷ 2 = 75 + 225 = 130 × 4 = 22 × 30 = 63 × 20 = 806 ÷ 2 = 40 × 32 = 54 × 20 = 480 ÷ 6 = 30 × 12 = 36 × 20 = 140 × 6 = 30 × 20 = 44 × 20 = 100 ÷ 2 = 20 × 45 = 12 × 60 = 600 ÷ 3 = 707 ÷ 7 = 3 × 102 = 450 × 2 = 459 ÷ 9 = 31 × 20 = 420 ÷ 6 = 480 ÷ 4 = 145 × 2 = 120 ÷ 6 = 11 × 30 = 147 ÷ 7 = 45 × 30 = 18 × 40 = 33 × 40 = 99 × 12 = 　 　 　 　 　 　 　 　 　 886 ÷ 9 = 　 　 　 　 　 　 　 　 　 25 × 37 = 42 × 23 - 320 (270 + 350) ÷ 2 (601 - 246) ÷ 5 23 单元五 　 第 3 课时　 练习六 3 年级 下 S 30 × 22 = 180 ÷ 3 = 72 ÷ 3 = 43 × 30 = 52 × 20 = 210 ÷ 7 = 32 × 40 = 24 × 20 = 810 ÷ 3 = 750 ÷ 5 = 360 ÷ 6 = 403 × 3 = 95 ÷ 5 = 22 × 50 = 19 × 40 = 50 × 18 = 25 × 40 = 15 × 60 = 24 × 50 = 430 + 210 = 200 ÷ 4 = 630 ÷ 7 = 50 × 19 = 707 ÷ 7 = 240 × 3 = 88 ÷ 4 = 148 × 2 = 40 × 80 = 700 ÷ 7 = 62 × 30 = 40 × 12 = 52 ÷ 2 = 600 ÷ 3 = 490 ÷ 7 = 155 ÷ 5 = 960 ÷ 8 = 320 × 3 = 640 ÷ 4 = 540 ÷ 9 = 488 ÷ 8 = 217 ÷ 4 = 　 　 　 　 　 　 　 　 　 365 ÷ 7 = 　 　 　 　 　 　 　 　 　 48 × 52 = 73 × (27 + 32) (461 - 246) ÷ 5 34 × 26 - 371 33 单元五 　 第 4 课时　 24 时记时法 3 年级 下 S 490 - 260 = 14 × 30 = 52 × 40 = 452 - 242 = 18 × 20 = 560 ÷ 4 = 125 × 8 = 308 × 4 = 312 ÷ 3 = 943 - 743 = 241 + 142 = 50 × 60 = 180 ÷ 6 = 605 ÷ 5 = 35 × 20 = 15 × 20 = 250 ÷ 5 = 22 × 40 = 27 × 30 = 203 × 8 = 350 + 270 = 840 ÷ 4 = 18 × 30 = 318 ÷ 3 = 48 × 20 = 420 ÷ 7 = 900 ÷ 3 = 800 × 5 = 16 × 40 = 572 ÷ 4 = 350 - 99 = 770