第9单元 数学广角——集合-【优佳好】2023-2024学年三年级上册数学口算计算能力提升（人教版）

单元 9 　 第 1 课时　 集 合 3 年级 上 R 500 × 6 = 270 + 90 = 312 × 2 = 140 × 3 = 115 × 4 = 230 × 4 = 345 - 45 = 136 + 64 = 52 × 3 = 140 × 7 = 102 × 4 = 25 × 3 = 420 - 180 = 320 + 180 = 123 × 3 = 450 × 2 = 540 + 370 = 650 × 4 = 120 × 8 = 607 × 4 = 700 - 280 = 540 - 230 = 308 × 6 = 47 + 133 = 900 - 370 = 35 × 2 = 480 - 160 = 230 × 3 = 548 - 400 = 305 × 4 = 425 + 175 = 540 × 2 = 508 - 425 = 326 + 118 = 437 × 3 = 480 - 256 = 800 × 7 = 15 × 8 = 630 × 4 = 273 × 3 = 736 × 5 = 457 + 356 = 532 × 8 = 117 × 6 = 408 - 279 = 316 + 227 = 76 单元 9 　 第 2 课时　 练习课 3 年级 上 R 84 + 16 = 300 × 5 = 140 × 3 = 220 × 4 = 415 × 3 = 108 × 7 = 240 + 180 = 2 7 + 3 7 = 5 6 - 2 6 = 4 8 + 2 8 = 78 - 36 = 45 + 125 = 630 × 4 = 507 × 8 = 300 × 8 = 420 - 360 = 530 + 170 = 1 - 37 = 3 8 + 5 8 = 7 8 - 2 8 = 145 × 2 = 709 - 309 = 510 × 2 = 480 - 200 = 207 × 5 = 325 + 175 = 246 - 108 = 3 4 + 1 4 = 2 5 + 1 5 = 6 9 - 4 9 = 480 × 3 = 217 × 3 = 226 × 5 = 148 + 532 = 270 + 346 = 800 - 255 = 326 × 4 = 8 9 - 7 9 = 3 5 + 2 5 = 3 6 + 2 6 = 735 + 124 = 638 - 459 = 736 × 4 = 277 × 4 = 315 - 248 = 374 + 256 = 86 单元 9 　 第 9 单元计算易错专练 3 年级 上 R 1. 直接写出得数。 45 + 55 = 432 - 200 = 375 - 175 = 640 + 160 = 2 8 + 2 8 = 7 9 - 2 9 = 140 - 70 = 500 - 360 = 240 × 3 = 470 - 250 = 1 - 57 = 3 8 + 5 8 = 320 × 3 = 107 × 6 = 820 × 3 = 87 - 46 = 3 6 + 2 6 = 5 7 - 2 7 = 5 × 40 = 230 × 4 = 114 × 2 = 43 × 5 = 1 5 + 4 5 = 4 6 - 2 6 = 2. 列竖式计算。 423 + 357 = 508 - 279 = 524 × 3 = 815 - 326 = 614 + 119 = 423 × 4 = 3. 脱式计算。 5 × 102 - 400 (327 - 318) × 6 727 - 3 × 140 96 着3年级上R 参考答案 ▣快了 结束时间 时 分-开始时间 时 分=做题时间 分 比上次口慢了 分 竖式计算提升 1569601482520 980 2428 1220819 712729312 113412275 竖式计算提升 第63页 36808134256 02 129543 口算能力提升 第68页 1 11 3 11 3 口算能力提升 10042290 1440 1500170400 651 4 5 6 3 420252010201130 8804056280680 6 7 8 8 27 124524001035616 75660500545 3 1 2 1 1 4207001381304 4 1 9 7 7 19 竖式计算提升 1 6 5 735570124 1 8 9 脱式计算提升 竖式计算提升 1314222430 8591792944 1108 67630 第64页 第69页 口算能力提升 1.10070960200 232 140 642920 1 61 6 4 4 2007202460228 800 22041 215 7 > 8 10 2 3 2 5 1 3-7 1