最新小学数学四年级口算、速算计算竞赛试题

小学数学四年级口算、速算竞赛试题

挑战计算极限，争当计算明星！加油！时间：30分钟

学校_____________班级_____________姓名________________

一、直接写得数：（每题0.5分，共16分）

26×3= 27×30= 710－230= 18×3=

540÷6= 170＋150= 52÷4= 170×3=

280－190= 840÷7= 50×19= 70－23=

30×15= 15×60= 800－130= 600×50=

40×25= 90－79= 840÷3= 4×230=

16＋49= 760÷2= 140×5= 180＋50=

8×13= 40×170= 380－290= 240×3=

750÷3= 180＋54= 380＋50= 20×35=

二、笔算。（第1题验算4分，其余每题3分，共19分）

54×312= 460×23= 317×26= 350×70= 108×25= 135×45=

三、列竖式计算（带*的题目要验算）（共10分）

508×1500= * 910÷90=

2306×43= *32.7－7.502=

四、使用简便方法计算（各1.5分）

158+262+138 99x13+13 3999+498 99+999+9999+99999

58×98 5001－247－1001－232 7755－(2187+755)

3065－738－1065 8100÷4÷75 (13×125)×(3×8) 21500÷125 102×76 4800÷25 84×36+64×84

75×99+2×75 178×101－178

998+999+1000+1001+100 280000÷25÷25÷4÷4

1＋2＋3＋……＋98＋99＋100 9999×1111+3333×6667

五、填空。（每空1分，共5分。）

1、找规律填数：

2、6、18、（）、162、（）。

2、6□7856000，□内填( )最接近6亿，填( )最接近7亿。

4、2小时＋21分=（）分

六、估算下列各题。（每题1分，共12分）

89×31≈ 58×39≈ 38×19≈ 91×89≈

41×82≈ 69×52≈ 57×801≈ 104×49≈

612×19≈ 107×39≈ 107×39≈ 198×51≈

七、列式计算。（8分）

1、某数加4，乘4，再除以4，等于13，这个数是多少？

2、甲数是乙数的4倍，比乙数多129，甲数是多少？

英语六级翻译必背

一、常用句型

一)原因

1.A number of factors might contribute to (lead to )(account for ) the phenomenon(problem).

2. The change in rgely results from the fact that...

3. We may blame ...，but the real causes are...

4.Another contributing factor (cause ) is ...

二)比较

1.The advantages of A are much greater than those of B.

2.For all the disadvantages，it has its compensating advantages.

3.A and B has several points in common.

4. People used to think ...，but things are different now.

三)批驳

1．There is a grain of truth in these statements，but they ignore a more important fact. 2．Some people say ...，but it does not hold water.

3．It makes no sense to argue for ...

4．Too much stress placed on ... may lead to ...

四)后果

1. It may give rise to a host of problems.

2. The immediate result it produces is ...

3. It will exercise a profound influence upon...

4. Its consequence can be so great that...

五)举例

1．A good case in point is ...

2．Such examples might be given easily.

六)证明

1．No one can deny the fact that ...

2．Recent studies indicate that ...

3．There is sufficient evidence to show that ...

七)开篇

1．Many nations have been faced with the problem of ...

2．Never in our history has the idea that ... been so popular.

3．Faced with ...，quite a few people argue that ...

4．According to a recent survey，...

5．With the rapid development of ......

八)结尾

1. From what has been discussed above，we can draw the conclusion that ...

2. It is high time that strict measures were taken to stop ...

3. With the efforts of all parts concerned，the problem will be solved thoroughly.

九)解释原因的

1.to begin with，then，furthermore，finally(强烈推荐)

2.to start with，next，in addition，finally(强烈推荐)

3.first and foremost，besides，last but not least(强烈推荐)

4.most important of all，moreover，finally