小学数学u三年级口算乘法练习课2课件维语

1、? oyn?瑴 3-?y hoo?-1 txi?rial?t ?ang?iu? ?iag?i1 1.?rial?t ?i?瓴: 104= 106= 204= 302= 603= 8005= 3004= 5006= 20007= 30005= 2?瑴?灄10?瑴?箝 ?1 x?1?( ).4?瑴?箝 ty x?1? ( ).5?瑴?箝 ? x?1? ( ).30x?1? ( )?瑴?箝 10.5000?瑴 ?箝a?) ( 瑴?箝 ?.? 10040050003532.?瑴?h箝瑴?i?o ?a? rix?:404 3007907 5008=16=16=21=21=63=63=4000=4000?

2、ii? h箝?athoy?i?h ?瑴r瑴x ?ioy?i?h ?瑴箝? ?瑴oy?i?h ?a瑴?箝灄0 x?1? ?h?i?yo瑴? ?灄? a瑴?n 0?瑴 ?n1 y.0 00 00000?瑴?灄4?n?1：?瑴灄?o ?o ?xa?397 280 （?ty）?n?1?93:瑴 7?1 ?xoy?i?h ?瑴灄?o 280 ?箝?1?.?80?r8ui ?i?瓴：?iail?n5 ?h ?1o ?箝y?y?a? 41 74 82 96 67 4040?hh? 瑴灄 ?瑴瑴x ?箝瑴?a?a? i瑴?1? ? y ?1? ?toti ?瑴1? 瑴r瑴x yry1. 70708080100

3、1007070127 367 491 519 100100400400500500600600?t? 瑴灄 ?瑴瑴x ?箝瑴?a?a? i瑴?1? ? y ?1? ?toti ?t?ty ?瑴r瑴x yry1. ?瑴?灄6?a? rix?:49 7 38954108 6043350350320032002000200018001800?a? onrix?:?瑴r瑴x ?i瑴?n ?1?y ?箝h ?toti ?toti?瑴1? t?ty ?itot? ?i? x ?箝 ? ?rix? ? .?5050400400?瑴?灄7 ?瑴 ?ix? ?oo?i31?瑴( )317 1. ?n?i ( )

4、 ?箝 ? ( ) =7 317 （ ）?瑴 ?ix? ?oo?i195?瑴 ( )1955 2. ?n?i( ) ?箝 ? ( ) =71955 ( ) 303021021020020010001000 8?ai0a8? ?1t ?aiar ?aianai?ai? 0?瓴 ?ai0a? ?瓴? 90?t1g ?8? 0a8? ?ar? ?annai?ai? 4?i ?l8an? ?8? ?耀?ita ?ria ?t1g ?n? 904=360（?t1g）. ?耀:ati?耀 360 ?t1g ?n?ai0a8? ?1t ?aiar ?aianai?ai? 0?瓴 ?ai0a? ?瓴? 92?

5、t1g ?8? 0a8? ?ar? ?annai?ai? 4?i ?rai8an? ?8? ?360 ?t1g ?ci?nag 924 （cg?i?ara?） （cg?i?ara?） ?耀:360 ?t1g cg?in?g. 90 360（元）95. 0a? ?1n ?ru? ?a?gi 3?t1g ?8? 198?1n ?ru? ?a?gi ?ai?an? ?1r1t 600?t1g ia?ci?nag ?cia ?ia?acaig?t 1983 （cga?r.） （cga?r） ?t1g can?g. ?耀:600 ?athoy?i?h xyi1a ?oy?i?h ?athoy?i?h?箝

6、yi1a ?xhah ?oy?i?h ?i瑴?n ? 箝? ?箝y?hah.200600（元）10 5007 ?瑴 ?ix? oo?i ?ii?) ( 瑴 ?h箝瑴y?h 0?瑴 ?o?i? o ( )=7 ( )?瑴 ?箝灄?yrix? ?瑴oy?i?h ?灄? x瑴灄 ?a瑴 ( )x?1? ?a瑴?n 0?瑴 ?n1 ?瑴?i( )? y ?x ?箝?1?.4005 ?瑴 ?瑴xoy?i?h ?灄? 箝x瑴灄 ( )?瑴?箝 0.? 500535035003 ?i ?cii iaigg?t:2?ic ( )?20044=8个（个（ ）=（ ）tyty8001143256378338467

7、34668.?a? rix?: 12241428129.?o?y ?tt8 10 =804 200 =800300 7 =21007 20 - 6 =134yry1：134+6=14030 3 - 2 =88yry1：88+2=9013?1? ?瑴? 1i?i? 瑴r瑴x ?箝?1o: （ ）0（ ）=8081（ ）0（ ）=802414（ ）0（ ）=9091（ ）0（ ）=9033?1? ?瑴? 1i?i? 瑴r瑴x ?箝?1o: 1511.11.?toti ?瑴1? 瑴r瑴x ? ?瑴灄 ?瑴x ?箝瑴?hoy?i?h ?xoy?i?h 240 240?箝1a ?oy?i?h ?箝x箝i? ?y ?瑴?1? ?瑴a瑴 ?xy?y（ ）0（ ）=24038（ ）0（ ）=240461612.12.? ?灄 ? ?箝y? ai ?灄 ?箝?i 20 20?ty ?o ? ?y?x?1? ?箝y ? ?a瑴 ?ty ?o ? ?a?o ?i?hh ?t? ?o ? ?o? 4040?ty6060?ty80 80 ?ty100 100 ?ty120 120 ?ty?a瑴?ax ?i ?xy?y?o17：? ?nio1. 1. ?oy?i?h ?瑴x?h hoo?箝y ?瑴ioh 76-76-? 2- 2-?瑴?x? n2. 2. ?n? 瑴?oh 45- 45-?3.3.?y? 4