内容正文:
单元三 第 1 课时 解决问题的策略(1)
3 年级 下 S
56 × 10 = 70 × 11 = 21 × 60 = 600 × 6 =
41 × 15 = 25 × 33 = 300 × 4 = 244 × 2 =
59 × 50 = 180 - 120 = 45 × 23 = 444 × 3 =
525 ÷ 5 = 160 × 6 = 918 ÷ 3 = 255 ÷ 5 =
66 × 23 = 68 × 40 = 560 ÷ 4 = 440 ÷ 8 =
824 ÷ 4 = 37 × 20 = 140 × 8 = 19 × 40 =
780 - 560 = 248 × 5 = 240 ÷ 5 = 24 × 51 =
210 + 80 = 210 × 8 = 182 × 5 = 49 × 90 =
300 - 140 = 325 ÷ 5 = 16 × 20 = 87 × 10 =
5 × 500 = 264 ÷ 8 = 28 × 30 = 371 × 6 =
42 × 35 = 12 × 99 = 126 ÷ 7 =
10 × 25 × 2 4 × 5 × 22 24 × 20 + 24
81
单元三 第 2 课时 解决问题的策略(2)
3 年级 下 S
100 - 45 = 43 × 50 = 410 × 5 = 58 × 20 =
55 - 23 = 670 × 6 = 150 × 3 = 25 × 40 =
45 × 23 = 8 × 20 = 60 ÷ 3 = 34 × 20 =
178 - 90 = 900 × 2 = 42 × 20 = 186 × 6 =
360 ÷ 6 = 136 - 27 = 282 ÷ 3 = 132 × 6 =
500 ÷ 4 = 23 × 15 = 360 ÷ 4 = 23 × 10 =
600 ÷ 5 = 26 × 73 = 540 ÷ 9 = 150 × 2 =
61 × 10 = 16 × 50 = 130 × 4 = 980 ÷ 7 =
340 × 2 = 240 × 3 = 17 × 30 = 840 ÷ 4 =
18 × 50 = 120 ÷ 5 = 24 × 30 = 312 ÷ 6 =
364 ÷ 8 = 156 ÷ 6 = 55 × 34 =
70 × 14 + 70 10 × 10 × 8 20 × 45 - 20
91
单元三 第 3 课时 练习四
3 年级 下 S
240 × 2 = 115 + 35 = 106 - 84 = 13 × 40 =
24 × 40 = 150 × 7 = 55 × 60 = 500 ÷ 4 =
64 × 80 = 260 × 3 = 136 ÷ 4 = 80 × 70 =
28 × 44 = 125 + 270 = 120 + 188 = 37 × 13 =
722 × 4 = 195 × 8 = 86 × 14 = 630 ÷ 3 =
72 - 48 = 25 × 70 = 70 × 20 = 844 + 155 =
170 × 5 = 75 × 80 = 25 × 30 = 980 ÷ 7 =
35 × 80 = 210 × 4 = 75 × 20 = 330 ÷ 6 =
115 × 5 = 106 + 80 = 255 ÷ 5 = 19 × 40 =
35 + 85 = 186 × 4 = 140 ÷ 5 = 320 × 3 =
52 × 34 = 29 × 67 = 364 ÷ 7 =
253 ÷ 7 = 880 ÷ 6 = 37 × 56 =
02
单元三 第三单元计算易错专练
3 年级 下 S
1. 直接写出得数。
160 × 7 =
162 × 6 =
70 × 15 =
35 × 20 =
28 × 8 =
960 ÷ 4 =
64 × 60 =
150 ÷ 5 =
79 × 40 =
39 × 10 =
4 × 16 =
249 × 3 =
45 × 30 =
37 × 4 =
780 ÷ 6