五年級(jí)數(shù)學(xué)下冊(cè)第二單元因數(shù)和倍數(shù)總復(fù)習(xí)

1、1?灄焛妰 ?t ?riara焛? ?r灄焛 ?r?焛 23366966?灄焛妰?t ?riara焛?332 66?( )?a0灄m( )?r ?ar灄焛妰.2. 966=16? ?( )?a0灄m( )?r ?riraa焛?. ? ?rir?:? 26=12?rrri?0灄m2?a0灄m ?灄焛妰12?a0灄m ?riara焛?.( )3?rm ?r?a ?焛焛 ?rr ?ar灄焛妰1?焛焛? ?灄 ?ar灄焛妰 5 ?r?a ?5焛.?rr灄焛妰 ?a ?ri焛 ?r0灄m.?rm ?r?a ?焛焛 ?rr ?riraa焛? 5 ?r?a ?5焛?焛焛? ?灄 ?riraa焛? ?灄灄.?

2、rriraa焛? ?a 5a焛 ?r0灄m.41, 12, 2, 6, 3,48, 16, 24, 32, 40,4812.1?r ?r?rir灄焛妰:( )50.2?r?rr焛 8?r ?r?rriraa焛?:( )5612?灄焛妰?t ?riara焛?灄焛妰_?焛焛?ri焛 ?rr1?焛焛? ?8灄 5 ?r?a ?5焛.?riraa焛?_?焛焛?5ra焛 ?rr 5 ?r?a ?焛焛?5焛 ?8灄 ?灄灄.?rm ?r?a ?焛焛 ?灄 ?ar灄焛妰6m?a0灄m ?a( )?rm ?r?a ?焛焛 ?rr ?riraa焛?12m?a0灄m ?a( )628?rm ?a ?焛? 28?r

3、 ?riraa焛? ?焛? 28?r ?ar灄焛妰 ?a0灄m m ?a( ).7?r焛 ?r?a ( )?r ?a 5ra焛 ?r0灄m. A ?栰 ?1? ?( 1 ?(?栰?B ?( 1 ?(?栰? C ?( 1 ?( (?栰?D ?栰 ?(?(? ?( 1 ?( (?栰? C8?焛0焛 焛r灄m ? ?a ?0灄12 3 4 20 18 6 0 24 16?r ?riraa焛?24?r ?ar灄焛妰1218624123462419?r焛rm焛 ? ?a 2?r ?riraa焛? ?灄 焛?rira焛焛焛 ?焛a?a?焛 ? ?a ?t ? ?a ? ?r焛 焛1? ?r0m.10?(?

4、栰? ?t?S? 2栰8 ? ? ? ?S?(?(? ? ? ?S? S?(,( ?S?(?栰 ? ? ? ?栰?S?S ?( 栰8? ? ?(? ? ?: 2栰8 ? ? ? ?S?(?(? ? ? ?t?S? ? ?S? 2栰8 ? ? ? ?S?(?栰 ? ? ? ?t?S? ?S? ?S? ?1? ?( ?S. 2栰8 ? ? ? ?S?(?(? ? ? ?(?t?S? ?( (?S:?栰?(? ?(?S?0?2?4?6?8?S?1? ?t?S?2栰8 ? ? ? ?(? ? ?.5栰8 ? ? ? ?S?(?(? ? ? ?(?t?S? ?( (?S:?栰?(? ?(?S?5 ?S?

5、0?S?1? ?t?S?5栰8 ? ? ? ?(? ? ?. 。?(? S?(?2?栰?栰8 5栰? ? ? ? ?S?(?(? ? ? ?(?t?S? ?( (?S:?栰?(? ?(?S? 0?S?1? ?t?S? ?(? S?(?2?栰?栰8 5栰? ? ? ? ?(? ? ?. 11981?a0灄m 3?r ?riraa焛? ?llm 3 3?r ?rriraa焛? ?rir?r?l?焛: :?rm ?r?a ?焛? ?a灄? ?r?rir? ?r? ?a ?ar?rr灄 3 3焛 ?妰 焛a0m m ?a 3 3?r ?riraa焛? ?r0灄m. .2367?a0灄m 3?r ?ri

6、raa焛? ?llm 12?(? S?(? ?栰?2?(? ?栰?3?(? t? 5?(? ?( (?栰? ?S?(?1? ?栰 ?(?(? ?( ?( (?S? ?S?30?栰? ?1? ?( ?( ?S? ?S?90? ?栰 ?(?(? ? ?( (?S? ?S?120?栰? ?1? ? ?( ?S? ?S?9901322?r ?riraa焛? ?r?灄?0灄m ? ?a6120? ?a ?t? ?a1. ?r焛rm焛 ? ?a ?rr焛( )?r ?riraa焛? ?r?0灄m ? ?a ?a ? ?rir?焛.2. ?r焛rm焛 ? ?a ?rr焛( ) ? ?a ? ?rir?焛.3

7、. l?rm ?r?rt2?r3?r ?riraa焛? ?r?0灄m ?焛焛 ?rr ?a ( ).4. l?rm ?r?rt2?r3?r 5?r ?riraa焛? ?r?0灄m ?焛焛 ?rr ?焛 ?ri? ?a ( ).14?r?t ?r? ?a ?rira灄? ? ?a ?rira灄? ? ?a ?ri焛r焛 ?r灄焛 ?r?m 3 7 20 18 6 0 25 1 2 8715? ?rir?:?焛0?rm r?ar? 0? 5 ?0灄m ? ?a 5?r ?riraa焛? ?r0灄m( )?焛0?rm r?ar? 3? 9?6 ?0灄m ? ?a 3?r ?riraa焛? ?r0灄m

8、( )?rm ?r?a ?焛? ?a灄? ?r? r? ?r? ?a ?ar?rr灄 3焛 ?妰 焛a0m m ?a 3?r ?riraa焛? ?r0灄m.0?a0灄m ? ?a( )16?rm ?r?a 1?t ?r?r5焛 ?5?m 焛焛灄 ?5?m ?ar灄焛妰 ?am?a0灄m?m ?焛? ?a ? ?rir?焛.?焛? ?r?a ?焛焛 5?焛 r?0灄m 3焛r? ?ar灄焛妰 ?m.(?焛焛 ?rr ?焛? ?a 4).? ?a ?t?焛?a?(?栰? ?t?S? ? 栰?(?( ?S?S ?(?(?栰? ?S-栰?(?( ?1? ?栰?S?S ?( 栰8? ?(?:? ?栰?1

9、? ?S? ?S?rm ?r?a ?焛?焛妰1?t ?r?r5焛 ?mr焛 rr焛 ?ar灄焛妰 ?am?a0灄m?m ? ?a ? ?rir?焛.?焛焛 ?rr ? ?a 2.1?r ?ar灄焛妰1?58 5?1? ?a ?焛?焛焛焛 ?a ?焛焛焛.171?r ?ar灄焛妰1.?(? ? ?(?S? 2栰? ?(?栰? ?S?.?(? ?栰?1? ?(?S? ?栰 ?S (?S?1? 3栰? ?(?栰? ?S?.18100100?r?rr焛 ? ? ?a2、3、5、7、11、13、17、19、23、29、31、37、41、43、47、53、59、61、67、71、73、79、83、89、9

10、7192?r? ?灄212, 3, 5, 7, 11,13,17,194, 6, 8, 9, 10,12,14,15,16,18,20? ?a ?t?焛?a1.? ?(?S?( )?栰?1? ?(?栰?栰? ?(?S? ( )?(?栰?栰? ?S?. 2.? ?S? ?栰 栰 ?栰?1? ?S? ?栰 栰 ?S?1? ?S? S?1?( ).1 ?(?20栰?(8 ?S?1? ?(?t?S? ? ?S? ?(?(?( ?S?(?1?( )?S?.4. 1?(?20栰?(8 ?S?1? ?(?t?S? ?栰?1? ?S? ?(?(?( ?S?(?1?( )?S?.201.?5灄? ?0灄m ?r

11、焛 ?a ? ?a 50m ?r.( )2. ?5灄? ?0灄m ?r焛 ?a ?焛? ?a 50m ?r.( )3.? ? ?a ?rr焛 ? ?a ?灄灄.( )4.? ?r? ?a ?ar焛? ? ?a.( )2110240?焛焛 ?rr ?r焛rm焛 ?a( )?焛焛 ?rr ? ?a( )?焛焛 ?rr ? ?a( )?焛焛 ?rr ? ?a( )?焛焛 ?rr ?焛? ?a( )22? ?a ?t?焛?a? ?rir?:31?41?51?61?71?r?焛0 ?ar焛? ? ?a.( )2. 9?15?21?25?57?87?r?焛0 ?ar焛? ?焛? ?a.( )3. 0?a0

12、灄m ?r焛rm焛 ?a ?焛? ? ?a.( )231. ?r?t ? ?a ?rr焛( )?焛?2?r ?焛? 5?r ?r?5 ?焛? 3?r ?riraa焛? ?r?0灄m ?a. 123 312 120 1002. ?r?t ? ?a ?rr焛( )? ?a ?焛焛焛. 17 37 47 913.?rm ?焛? ?r?a ( ). ?rm 焛r? ?ar灄焛妰 ?m ?r焛 焛r? ?ar灄焛妰 ?m ?焛 焛r? ?ar灄焛妰 ?m 5?焛 ?焛r?0灄m 焛r? ?ar灄焛妰 ?m 2414545?灄灄?r焛rm焛 ?r?rir灄焛妰? ?a 5?焛-焛?rri妰 ?焛a?a?焛

13、( ) ? 焛50m ?r0灄m. ? ?a ?t ?焛? ?a ? ?a ?t ? ?a ? ?a ?焛? ?a ?t 0 ? ?a ?焛? ?a ?t 1?05. 45?r ?焛焛 ?rr ?ar灄焛妰( )? ?焛焛 ?灄 ?ar灄焛妰( )? ?焛焛 ?rr ?riraa焛?( )? ?焛焛 ?灄 ?riraa焛?( )25? ? ?1?12 13 15 17 18 66 20 21 25 30 37 39 41 48 83 91 96 129 1 2?(? ?( (?栰?:2 3?(? ?( (?栰? :3 5?(? ?( (?栰? :4 ?S? ?S?:5 ? ?S?:6 ?栰?1

14、? ?S?:26?a0灄m ? ?a.51 （3）?r0?m ? ?r? ?a ?ar焛? ?焛? ?a ?r0灄m. （6）?r0?m ? ?r? ?a ?ar焛? ? ?a ?r0灄m. （7）1. ?焛 512?a0灄m6焛1 ?妰 ?r0m.（1）a （2） ?(? ?栰 ?1? ?(?栰? ?栰 (? ?栰 ?(?(? ?( (?栰? a (a S?1? ?(?栰? ?S?).4?a0灄m ?灄焛妰8?a0灄m ?riara焛?.（4）9?a0灄m ? ?a ?焛? ?焛? ?a.（5）272.2.?r?焛焛 ?rri5r焛 ? 0? （1） ?(? S?(?2?3?5?(?栰? ?

15、( (?栰? ?S?(?1? ?栰 ?(?(? ?( ?( (?S? ?S? S?1?( )? ?栰 ?(?(? ? ?( (?S? ?S? S?1? ( ). A 15 B 30 C 120 D 102(2) 5焛 r?焛 ?焛 ?r0灄m ?焛 ?a A? B ?C?l ?m ?0m B?a ?a0灄m C?r?a ?焛?riraa焛? A?r?a ?r?焛?ar灄焛妰 m ?焛 ?a ?r?rr焛 ?焛焛 ?灄 ?a ?a0灄m( ) A A?a B B?a C C?a（3） ?焛1焛焛 A ?a ?焛irm B?r?a ?焛? ?arirr焛 ? ?a ?a0灄m ?r?焛 ?r?l焛

16、 ?r灄焛 ?ar灄焛妰 ?灄( )?焛l?r? ?ar灄焛妰( ) A A ?a B B ?a C 1 D ? ?a E ? ?a F? ?a G?焛? ?a 283.3.?r5r0? ?rt? ?r?m（1） 20 ?r?rr焛 ?r? ?a ?焛? ? ?a ?焛? ?焛? ?a ?r?0灄m ?r? ?a （ ） ?m（2） ?rm ?焛 ?rir? ?a ?m ?焛05灄?0m ?r?rar? ?a ?a0灄m 10 ?r?rr焛 ?焛焛 ?灄 ? ? 灄焛?a ?r?rar? ?a ?a0灄m ?焛焛 ?rr ?焛? ?焛0?rm?a ?r?rar? ?a ?a0灄m ?焛? ?

17、?a ?焛? ? ?a m?a0灄m ?焛 ?rir? ?a ?a0灄m( )29？ ?r焛 ? ?a ?m ?r?l焛?0灄m ?arr?灄?焛 ?a0灄m ?焛? ?r?l焛?a ?ar?rr灄 ?焛? 11?r ?riraa焛? ?焛? 50?r? ?rr ?0灄m ? ?a 5ra?a0灄m 5 焛妰焛0焛 ?灄焛 ?0灄m 焛? ?妰妰?1 ? ?a ?5ra灄lr5?灄3008 0、3、6、9栰?栰?栰? ?栰?S?S ?1? ? ?1 ? ? ?1?:l45 S?1?3?(? ?栰? 5?(? ?( (?栰? ?S?1? ?(? 栰?(?( )? ? ?1? ?1?.2. 17

18、S?1?2?(? ?( (?栰? ?S?1? ?(? 栰?(?( ?栰 ?1? ?S?1?( )? ? ?1? ?1?.3. 36 S?1?3?(? ?( (?栰? ?S?1? ?(? 栰?(?( )? ? ?1? ?1?.31 ?(? ?(?1? ?t?S? 栰8?栰? ?S?0?(? ?S?(?S 栰8?栰? ?S (?S 0?(a(?1? 2 75 18 37 4032?栰 (?栰 ?栰? ?( (? ?(?栰 96S?1? ? ? ?S? ?(?S? ?1? ?,( ?S? ?S?1 ?S?( ?1? ? S?S ?S? ?S? ?1? ?(?(?(S ?S?t(?S? ? ? ? ?

19、1?-?1? ?t(?S? ? (?栰8? 0 ?(?1?1-? ? 1? S?S 2-? ? 1? S?S 3-? ? 1? S?S 2S?1? 3 S?1? 5 S?1?33?(? ?S? ?栰? 36?(? ?(?栰? ?栰? 6?(? ?( (?栰? ?S?1? ?S? 栰?S? ? ? ? 0?(? 6、12、18、3634l? 1? ( ?栰 53栰? ?栰?1? ?S? ? ?1? ?栰? ?(? ?(?(? S,?(?1?5?(?(? ? ?栰 ?栰? ?栰?S?1? ?S ?S?1? 栰?栰? 栰?S? 栰? ?栰?1? S?1? ?(?S ?栰?-?栰? ? ? (8?栰? 栰?S?0