小学三年级数学下册：计算题大全(600题)
这是一个三年级数学下册的口算练题，共有120道题目。以下是部分题目：
加法：
1.27 + 46 =
2.90 + 47 =
3.18 + 15 =
4.92 + 65 =
5.18 + 53 =
6.29 + 32 =
7.14 + 56 =
8.72 + 76 =
9.71 + 68 =
10.39 + 79 =
11.64 + 60 =
12.38 + 69 = 13.83 + 62 =
14.12 + 98 =
15.17 + 84 =
大数加法：
1.175 + 157 =
2.645 + 239 =
3.808 + 213 =
4.256 + 775 =
5.607 + 914 =
6.352 + 708 =
7.766 + 792 =
8.970 + 602 =
9.343 + 801 =
10.916 + 861 =
11.806 + 487 =
12.691 + 400 =
13.106 + 537 =
14.353 + 939 = 15.328 + 114 =
减法：
1.810 - 125 =
2.648 - 585 =
3.398 - 148 =
4.716 - 117 =
5.704 - 124 =
6.449 - 312 =
7.713 - 288 =
8.202 - 155 =
9.954 - 286 =
10.802 - 668 =
11.860 - 162 =
12.287 - 167 =
13.859 - 371 =
14.941 - 343 =
15.472 - 425 =
大数减法：
1.900 - 168 =
2.300 - 186 =
3.900 - 554 =
4.800 - 200 =
5.700 - 666 =
6.300 - 122 =
7.900 - 353 =
8.500 - 162 =
9.900 - 705 =
10.400 - 133 =
11.200 - 158 =
12.300 - 257 =
13.400 - 157 =
14.700 - 205 =
15.300 - 288 =
乘法：
1.70 × 5 =
2.50 × 9 =
3.10 × 8 =
4.7 × 30 =
5.2 × 90 =
6.70 × 8 =
7.6 × 20 =
需要注意的是，题目中的数字应该是排列整齐的，每行应该是相同类型的题目，方便学生做题。同时，题目的格式应该统一，例如加减号、乘号、等号的大小写、字体、位置等应该一致。
以下是格式错误的段落和删除后的文章：
格式错误的段落：
1）5 ×10 =
2）30 ×6 =
3）70 ×4 =
4）7 ×80 = 5）40 ×8 =
6）4 ×80 =
7）90 ×4 =
8）10 ×6 =
9）90 ×4 =
10）60 ×9 =
11）90 ×1 =
12）3 ×60 =
13）1 ×50 =
14）8 ×60 =
15）2 ×30 =
删除后的文章：
口算练题（一）
8）9 ×70 =
9）2 ×90 =
10）20 ×1 =
11）8 ×80 = 12）60 ×3 =
13）50 ×4 =
14）90 ×7 =
15）6 ×20 =
口算练题（二）
1）230 ×700 =
2）100 ×800 =
3）590 ×860 =
4）970 ×710 =
5）460 ×540 =
6）620 ×570 =
7）450 ×530 =
8）540 ×310 =
9）810 ×850 =
10）720 ×680 =
11）290 ×240 =
12）230 ×740 =
13）630 ×470 = 14）280 ×670 =
15）940 ×760 =
口算练题（三）
1）640 ÷8 =
2）840 ÷6 =
3）120 ÷3 =
4）540 ÷9 =
5）400 ÷8 =
6）900 ÷9 =
7）480 ÷8 =
8）300 ÷6 =
9）400 ÷4 =
10）420 ÷3 =
小幅度改写后的文章：
口算练题（一）
8.9 × 70 =
9.2 × 90 =
10.20 × 1 =
11.8 × 80 =
12.60 × 3 =
13.50 × 4 =
14.90 × 7 =
15.6 × 20 =
口算练题（二）
1.230 × 700 =
2.100 × 800 =
3.590 × 860 =
4.970 × 710 =
5.460 × 540 =
6.620 × 570 =
7.450 × 530 =
8.540 × 310 =
9.810 × 850 = 10.720 × 680 =
11.290 × 240 =
12.230 × 740 =
13.630 × 470 =
14.280 × 670 =
15.940 × 760 =
口算练题（三）
1.640 ÷ 8 =
2.840 ÷ 6 =
3.120 ÷ 3 =
4.540 ÷ 9 =
5.400 ÷ 8 =
6.900 ÷ 9 =
7.480 ÷ 8 =
8.300 ÷ 6 =
9.400 ÷ 4 =
10.420 ÷ 3 =
三年级数学下册口算练题（一）
1.40 × 40 =
2.82 × 90 =
3.92 × 60 =
4.18 × 80 =
5.30 × 81 =
6.96 × 80 =
7.50 × 86 =
8.13 × 10 =
9.10 × 20 =
10.30 × 26 =
11.30 × 62 =
12.88 × 40 =
13.88 × 30 =
14.60 × 45 =
15.70 × 65 =
三年级数学下册口算练题（三）
1.18 × 88 =
2.23 × 55 =
3.93 × 14 =
4.88 × 67 =
5.44 × 55 =
6.22 × 14 =
7.91 × 69 =
8.61 × 55 =
9.31 × 60 =
10.73 × 54 =
11.67 × 37 =
12.25 × 31 =
13.79 × 26 =
14.97 × 75 =
15.35 × 35 =
三年级数学下册口算练题（二）
1.600 × 50 =
2.100 × 30 = 3.900 × 10 =
4.400 × 60 =
5.100 × 10 =
6.40 × 100 =
7.600 × 60 =
8.700 × 40 =
9.40 × 600 =
10.100 × 40 =
11.800 × 10 =
12.60 × 200 =
13.60 × 100 =
14.30 × 400 =
15.90 × 500 =
三年级数学下册口算练题（四）
1.2791 - 1935 =
2.3742 + 5403 =
3.1928 - 1393 =
4.6797 + 2124 = 5.2435 + 7049 =
6.8149 - 7885 =
7.7168 - 1811 =
8.4357 + 4641 =
9.1160 + 2514 =
10.3803 + 1001 =
11.6131 + 2505 =
12.4624 + 4691 =
13.2805 + 5157 =
14.1577 - 1547 =
15.8089 - 5036 =
改写后的文章：
以下是三年级数学下册口算练题，共四份，每份包含15个题目。
第一份题目如下：
1.40 × 40 =
2.82 × 90 =