内容正文:
单元 9 第 1 课时 数与代数
4 年级 上 R
400 × 6 = 350 × 20 = 580 ÷ 58 = 800 ÷ 42≈
840 ÷ 60 = 30 ÷ 2 = 180 × 30 = 720 ÷ 89≈
105 × 40 = 100 ÷ 20 = 360 ÷ 18 = 564 ÷ 71≈
600 ÷ 40 = 360 × 20 = 250 ÷ 50 = 268 ÷ 90≈
600 ÷ 25 = 350 ÷ 50 = 720 ÷ 60 = 59 × 41≈
410 × 30 = 125 × 80 = 250 × 80 = 723 ÷ 78≈
300 ÷ 20 = 20 × 320 = 500 × 7 = 62 × 201≈
640 × 30 = 273 ÷ 13 = 640 ÷ 80 = 198 ÷ 19≈
900 ÷ 60 = 100 × 80 = 210 × 70 = 180 ÷ 32≈
503 × 5 = 340 × 60 = 168 ÷ 42 = 632 ÷ 92≈
840 × 27 = 633 ÷ 84 = 148 × 59 =
720 ÷ 16 × 342 320 × 28 + 707 (430 - 190) ÷ 15
07
单元 9 第 2 课时 图形与几何
4 年级 上 R
340 - 170 = 400 ÷ 80 = 490 ÷ 70 = 250 × 50 =
3000 ÷ 60 = 600 × 25 = 350 ÷ 70 = 720 ÷ 60 =
80 × 24 = 18 × 300 = 400 × 9 = 630 ÷ 90 =
600 ÷ 60 = 660 ÷ 60 = 800 ÷ 20 = 250 × 40 =
111 × 11 = 360 ÷ 40 = 250 × 30 = 725 ÷ 25 =
120 - 89 = 300 ÷ 20 = 630 ÷ 21 = 203 × 30 =
537 × 28 = 355 ÷ 40 = 405 × 37 =
588 ÷ 12 = 493 ÷ 26 = 352 × 36 =
244 × (308 - 275) 200 ÷ 25 + 143 45 × 136 - 1800
17
单元 9 第 3 课时 统计与综合应用
4 年级 上 R
121 ÷ 11 = 56 × 500 = 56 × 400 = 700 ÷ 50 =
180 × 30 = 250 × 40 = 32 × 5 = 650 ÷ 13 =
360 ÷ 30 = 280 ÷ 40 = 462 ÷ 22 = 360 ÷ 20 =
960 ÷ 16 = 133 ÷ 19 = 490 ÷ 70 = 203 × 30 =
640 × 30 = 180 ÷ 20 = 120 × 50 = 180 × 60 =
620 × 40 = 760 ÷ 19 = 320 × 40 = 570 × 30 =
417 × 28 = 485 ÷ 62 = 587 × 12 =
378 ÷ 26 = 609 × 54 = 846 ÷ 52 =
(800 - 450) ÷ 25 780 ÷ 13 × 190 180 + 777 ÷ 21
27
4年级上R
参考答案
口快了
结束时间
时
分一开始时间
时
分=做题时间
比上次口慢了
分
第60页
竖式计算提升
口算能力提升
22.…163675
6…2
6300728018
94750
6203010
脱式计算提升
450794
3302030
39621
322142
3162731
第67页
801286
1383020
口算能力提升
5120620
40999
84001680840016
42008760
竖式计算提升
3020204050
16201690800013
9…189…20
6…18
42477
4.14400.405200
70005102420
第61页
竖式计算提升
1.70366
15…16204
9384
1076431…128…2