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1. 直接写出得数。
48 + 96 =
199 - 27 =
145 + 85 =
340 - 29 - 71 =
15 × 40 =
270 + 36 =
198 - 99 =
43 × 50 × 2 =
200 - 64 =
13 + 98 =
480 ÷ 5 =
95 × 10 ÷ 5 =
180 ÷ 30 =
420 ÷ 70 =
72 × 7 =
125 × (8 ÷ 2) =
115 + 171 =
83 × 100 =
150 ÷ 2 =
89 × 99 + 89 =
105 ÷ 5 =
320 ÷ 20 =
240 × 3 =
310 ÷ 5 ÷ 2 =
25 × 8 =
102 × 7 =
200 × 8 =
169 ÷ 13 × 2 =
14 × 60 =
480 ÷ 6 =
321 × 40 =
390 ÷ (39 × 2) =
48 + 96 =
144
199 - 27 =
172
145 + 85 =
230
340 - 29 - 71 =
240
15 × 40 =
600
270 + 36 =
306
198 - 99 =
99
43 × 50 × 2 =
4300
200 - 64 =
136
13 + 98 =
111
480 ÷ 5 =
96
95 × 10 ÷ 5 =
190
180 ÷ 30 =
6
420 ÷ 70 =
6
72 × 7 =
504
125 × (8 ÷ 2) =
500
115 + 171 =
286
83 × 100 =
8300
150 ÷ 2 =
75
89 × 99 + 89 =
8900
105 ÷ 5 =
21
320 ÷ 20 =
16
240 × 3 =
720
310 ÷ 5 ÷ 2 =
31
25 × 8 =
200
102 × 7 =
714
200 × 8 =
1600
169 ÷ 13 × 2 =
26
14 × 60 =
840
480 ÷ 6 =
80
321 × 40 =
12840
390 ÷ (39 × 2) =
5
答案
1. 144 172 230 240 600 306 99 4300 136 111 96 190 6 6 504 500 286 8300 75 8900 21 16 720 31 200 714 1600 26 840 80 12840 5
2. 用竖式计算,带☆的要验算。
56 × 108 =
400 ÷ 25 =
☆276 × 43 =
56 × 108 =
6048
400 ÷ 25 =
16
☆276 × 43 =
11868
竖式及验算略答案
2. 6048 16 11868 竖式及验算略
解析
```
108
× 56
-----
648
5400
-----
6048
16
25√400
25
-----
150
150
-----
0
276
× 43
-----
828
11040
-----
11868
验算：
43
×276
-----
258
3010
8600
-----
11868
```
108
× 56
-----
648
5400
-----
6048
16
25√400
25
-----
150
150
-----
0
276
× 43
-----
828
11040
-----
11868
验算：
43
×276
-----
258
3010
8600
-----
11868
```
3. 将下面的表格填写完整。
答案
3. 108 平方厘米 5 分米 140 平方厘米 600 分米（从上到下）
如图,平行四边形的面积是$ 80 cm^2,$求涂色三角形的面积。
答案
80÷(4+6)=8(cm) 4×8÷2=16(cm²)
