2026年亮点给力计算天天练二年级数学下册苏教版第57页答案
1. 直接写出得数。
32 - 24 =
3600 - 600 =
250 + 70 =
58 + 23 - 30 =
29 + 22 =
140 - 50 =
6000 + 400 =
15 + 78 - 21 =
310 + 800 =
80 + 70 =
840 + 90 =
50 + 20 + 40 =
30 + 90 =
9000 - 8000 =
700 + 340 =
55 + 27 - 31 =
7 × 5 - 16 =
36 + 49 =
250 + 900 =
540 + 370 =
55 - 26 =
1300 - 1000 =
670 + 800 =
6500 - 500 + 300 =
90 + 800 =
700 + 600 =
800 + 240 =
8 × 8 - 34 =
830 + 900 =
270 + 450 =
360 + 90 =
380 + 620 + 900 =

答案

1. 8 3000 320 51
51 90 6400 72
1110 150 930 110
120 1000 1040 51
19 85 1150 910
29 300 1470 6300
890 1300 1040 30
1730 720 450 1900
2. 用竖式计算，带 * 的要验算。
384 + 97 =
658 + 796 =
644. + 578 =
543 + 98 + 384 =
665 + 23 + 174 =
347 + 356 + 41 =

答案

2. 481 1454 1222
1025 862 744
竖式及验算略
(1)8 ☆ 2 = 8 + 88 = 96
9 ☆ 2 =
9+99=108

(2)5 ☆ 3 = 5 + 55 + 555 = 615
6 ☆ 3 =
6+66+666=738

答案

·思维提升
(1) 9+99=108
(2) 6+66+666=738