这道六年级计算题100道怎么做？

来源：蜘蛛抓取(WebSpider) 时间：2014-10-08 12:59 标签： 小明在做分数计算题时
这道题怎么做：阅读理解 D
Do you need useful and interesting books? Here we’ve got plenty for you.
Successful Fishermen
Fishing is a healthy hobby. You can enjoy fresh air when you go fishing in the c_作业帮
拍照搜题，秒出答案
这道题怎么做：阅读理解 D
Do you need useful and interesting books? Here we’ve got plenty for you.
Successful Fishermen
Fishing is a healthy hobby. You can enjoy fresh air when you go fishing in the c
这道题怎么做：阅读理解 D
&&&& Do you need useful and interesting books? Here we’ve got plenty for you.
&&&& Successful Fishermen
&&&&&Fishing is a healthy hobby. You can enjoy fresh air when you go fishing in the countryside. This book will teach you how to choose fishing places and how to make good fishing rods (竿) easily. Many kinds
of fishing skills are shown in the book. Read it and you will become a more successful fisherman.
&&&& Best Learners
&&&& This book can give you the answers to the questions most often asked by parents, teachers and
students themselves. Read this book and learn: &&&& ●What the three difficulties in study are and what to do with them. &&&& ●What to do if you are not interested in a subject you are studying. &&&& ●Twenty-six simple exercises to help you study easily and fast. &&&& You will get more from this book. For younger students, you can buy
Learn in Study for Beginners
It is easier to understand.
&&&& How to Keep Pets
&&&&&A pet can be our best friend. Do you have pets in your house? Are they in good shape? This book
not only offers you many colorful pictures of lovely pets, but also provides you with the knowledge
about: &&&& ●How to choose right pets for yourself. &&&& ●How to build houses or nests (窝) for your pets. &&&& ●How to feed the pets and how to keep them clean. &&&& Buy this book and you will learn more &&& &We have many other books on sale. For more information enter
www.knowbetter &http://www. knowbetter&. com
. If you buy two or more books at a time, you’ll get 10% off.
1. If you buy and read
Successful Fishermen
, you will ______.
A. go to the countryside&&&&&&&&&& B. know where to buy fishing rods C. know how to cook fish&&&&&&&&
D. learn how to choose fishing places
2. There are many pictures in _____ according to the passage.
Best Learners
&&&&&&&&&& B.
Successful Fishermen
How to Keep Pets
Learn to Study for Beginners
3. You can _____ for more information about other books according to the passage.
A. call the writer&&&& B. go to the shop&&&& C. search the Internet&&&& D. ask the clerk
4. The writer wrote this passage in order to _____ .
A. increase sales of the books&&&&&&
B. buy useful and interesting books C. tell people how to keep pets&&&&&& D. teach students to study easily and fast
5. You can most probably (可能) find this passage in a ______.
A. story&&&&&&
B. report&&&&&&&& C. dictionary&&&&
D. newspaper这道计算题怎么做？要有过程！！～谢谢啦_百度知道
解原式=一85/100x8/17一18x2/7十(18x9/7一9/17x85/100)=-8/20-18-9/20=-18-17/20=俯旦碘秆鄢飞碉时冬江-18(17/20)
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出门在外也不愁计算题3+5+7+9+11+13+15+17+19+21+23+25这道题怎么计算比较方便?_作业帮
拍照搜题，秒出答案
计算题3+5+7+9+11+13+15+17+19+21+23+25这道题怎么计算比较方便?
计算题3+5+7+9+11+13+15+17+19+21+23+25这道题怎么计算比较方便?
很简单啊,（首项+末项）乘项数除以二,即（3+25）乘12除以2=168别忘了给我设为最佳答案哦
=（3+25）+（5+23）+（7+21）+（9+19）+（11+17）+（13+15）=28*6=168
3+5+7+9+11+13+15+17+19+21+23+25=3+(5+25)+(7+23)+(9+21)+(11+19)+(13+17)+15=3+30
+15=3+150+15168
可以利用小学奥数里的求和公式，这样算：（3+25）*12/2=168也就是头加尾的和除以公差加一..加油楼主。。。
(3+25)*12/2
(3+25)*6=168
先把3单独拿出来然后你这样做把最后的一个和最前面的相加即25+523+721+919+1117+13还留一个15也就是5个30+15再加3和为168写成等式是这样3+5+7+9+11+13+15+17+19+21+23+25=（25+5）+（23+7）+（21+9）+（19+11...
(25+15)+(23+17)+(21+19)+(13+7)+(11+9)+(3+5)
这是一道等差数列的题目，等你上高中就可以学到了。等差d=2，首项a1=3,末项25,所以这道题目最终答案是（首项+末项）*项数/2=（3+25）*12/2=168
=(3+17)+(5+15)+(7+13)+(9+11)+(21+19)+(23+25)=20+20+20+20+40+48=80+40+48=168请问这道计算题怎么做？_百度知道
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=3 如果你觉得我的回答比较满意：原式=√3×（3×3^-1/3）^-3&#47，希望你给予采纳;4
=3^(1/2+1&#47，因为解答被采纳是我们孜孜不倦为之付出的动力解
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