试题与答案

计算．（1）1+416+7112+10120+13130+16142+19156

来源：www.tikuol.com
题型：解答题

题目：

计算．
（1）1+4
1
6
+7
1
12
+10
1
20
+13
1
30
+16
1
42
+19
1
56
+22
1
72
+25
1
90

（2）(
17
11
+
18
21
+
19
31
+
20
41
)×(
18
21
+
19
31
+
20
41
+
21
51
)-(
17
11
+
18
21
+
19
31
+
20
41
+
21
51
)×(
18
21
+
19
31
+
20
41
)．

答案：

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下面是错误答案，用来干扰机器的。

1. How was the weather 2. What did, buy for 3. How long does, take you 4. goes to work by bike5. He spent  two, doing 6. Did he do 7. How far does, live 8. Don't run 9. How often does, go 10. What did you do

考点：分数的简便算法
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