第5单元 平行四边形和梯形-【优佳好】2023-2024学年四年级上册数学口算计算能力提升（人教版）

单元 5 　 第 1 课时　 平行与垂直 4 年级 上 R 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　72 × 40 = 500 × 14 = 130 × 20 = 420 × 40 = 320 × 50 = 180 × 30 = 105 × 70 = 230 × 30 = 200 × 18 = 145 × 20 = 170 × 30 = 20 × 180 = 506 × 80 = 106 × 70 = 120 × 40 = 256 × 10 = 102 × 70 = 140 × 50 = 207 × 30 = 34 × 3 = 57 × 300 = 130 × 4 = 150 × 5 = 260 × 30 = 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　169 × 23 = 405 × 72 = 450 × 27 = 159 × 36 = 236 × 28 = 348 × 72 = 928 - 238 ÷ 7 42 × (127 + 383) 765 + 240 × 70 63 单元 5 　 第 2 课时　 画垂线 4 年级 上 R 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　60 × 123 = 66 × 40 = 140 × 7 = 100 × 27 = 150 × 40 = 105 × 40 = 581 - 356 = 482 + 118 = 31 × 400 = 142 × 20 = 122 × 6 = 251 × 30 = 61 × 200 = 425 × 40 = 220 × 60 = 148 × 20 = 420 × 30 = 161 × 50 = 408 × 60 = 54 × 90 = 260 × 7 = 70 × 140 = 240 × 20 = 250 × 40 = 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　421 × 52 = 809 × 45 = 730 × 56 = 320 × 37 = 507 × 31 = 403 × 58 = 45 × 270 - 190 111 ÷ 3 × 120 120 × 55 - 450 73 单元 5 　 第 3 课时　 画长方形和正方形 4 年级 上 R 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　605 × 6 = 430 × 20 = 40 × 140 = 520 × 30 = 207 × 20 = 320 × 90 = 444 × 20 = 300 × 17 = 305 × 3 = 160 × 70 = 240 × 50 = 140 × 50 = 40 × 75 = 170 × 30 = 232 × 40 = 38 × 200 = 5 × 405 = 135 × 80 = 180 × 40 = 70 × 400 = 707 × 2 = 250 × 50 = 120 × 60 = 430 × 30 = 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　432 × 18 = 750 × 25 = 608 × 52 = 348 × 27 = 209 × 56 = 176 × 35 = (100 - 55) × 256 120 × 18 - 980 108 ÷ 9 × 560 83 单元 5 　 第 4 课时　 练习课 4 年级 上 R 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　720 × 40 = 560 ÷ 4 = 165 ÷ 5 = 246 ÷ 2 = 200 × 18 = 120 ÷ 2 = 300 × 16 = 270 × 5 = 506 × 80 = 720 ÷ 6 = 360 × 8 = 73 × 40 = 210 × 30 = 28 × 400 = 61 × 200 = 750 ÷ 5 = 96 ÷ 3 = 89 × 200 = 240 ÷ 2 = 660 ÷ 6 = 480 ÷ 4 = 416 ÷ 4 = 360 ÷ 2 = 70 × 90 = 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　67 × 225 = 356 × 18 = 208 × 60 = 12 × 303 = 770 × 49 = 364 × 47 = 2908 + 370 × 30 25 × 37 × 4 131 × 40 - 2100 9