北师大版四年级数学上册练习题

1、635400                读作：                                

2、63540000              读作：                                

3、43000043              读作：                                

4、87002300              读作：                                

5、13567               读作：                                

6、1356700             读作：                               

1、七百                  写作：                                

2、七百万                写作：                                

3、九千零八              写作：                                

4、九千零八万            写作：                                

5、四千五百二十六万三百七十     写作：                          

6、一千零五十万零三十           写作：                          

7、十万零五                     写作：                          

8、十二万五千                   写作：                          

二、求近似数：

将下列数分别近似到百位，千位，万位

45698765               45486784            22225358

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2235468              2323655               75    

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572131            58723555             24545678

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将下列数分别近似到百十万位，千万位，亿位

221358452               93165456            2265232215

9999999999            44444444444            5555555555

将下列数写成整万或整亿的数

960000                       91000000                69000000                     560000000000                 0000000000                 1320000

230000000                    54000000

三、用竖式计算 ：

5×23               6×42                569×12

458×14               565×91            567×   

423×15               2×             456×73

四、怎样简便就怎样计算。  

355+260+140+245     102×99       5-180-245

382×101-382       4×60×25      35×8+35×6-4×35   

125×32             25×32                25×46                          

101×46                     101×56                99×56                                       

 99×26         1022－478－422      987－（287＋135）   

478－256－144     672－363＋      36＋－36＋      

487－287－139－61  500－257－34－143      125×48       

1814－378－422    ×999＋      155＋2＋36＋44     

25×（20＋4）                 88×225＋225×12     

169×123—23×169    37×99+27        129×101—129   

56×51+56×48+56               2000－368－132