精品_分数和小数的互化pptPPT

1、_分数和小数的互化ppt_分数和小数的互化ppt1. ? ? 2? ? ?2? e? 1? 2? ?2 ?bded? ?e? ?ie?2? ? ? 1031001710009_分数和小数的互化ppt.?p? ?d?d ?d?dep 20.3 1 ( 3) ? 10 ? ? ? d (10 ) ? ( 3 ) ? d?2?0.17 ? 1 ( 17 ) ?b ?al ? d?2? ( 100 )? ( 17 )? d?2?.0.009? 1 9 ) ?b ? ? d?2? ( 1000)? ( 9 )? d?2?. _分数和小数的互化ppt? ?1? ?01? ?i? ra? ?i? r?i ?

2、0? 1?x ?ila? x0 r1 ? ?1? 0.8 ?0 ? ?l0 ?1 ? ?i? ?0 ? ?l0 ?1 ?i? ? ?i? ?1? ?ri ? 1r1? 4 3 _分数和小数的互化ppt13? ?d?dad ?1?2?2 ? 10?el? ?e? ?e? ?e? ?12? ? ?ded? ? ?e? ?d1?e? 310 = 0.3(m)3 5 = 0.6(m)310310 =3 5 =35(m)(m)0.3=0.6=31035_分数和小数的互化ppt ?d?p ?2 ep? ?p ?11? ?la? ?11? ? ?11? ?2?2? ?2? 2de ?r?l?10001000

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8、0cm150g125cm23680dm3mmkgkgdm2dm2m3m30.40.151.253.6852251732034116.? ?r ?bd? ?2? ?d?d?dep ?d? 3?2? ?2d? ?2ep. _分数和小数的互化ppt? ?l? ? 2d? 0.9?b ?l ?d ? 2d? 50 ?l ?d ?e? ? 2d? ?b ?l ?d.56?e ? ? ?b ?2 ? a? ?l ?d?d_分数和小数的互化ppt?0i ?i0?0i 0 ?r? 25 ?i ?l0 ?0i1.? ?r 2ie2? ?2? ? ?.14? ?ld ? ?ea ?2elp 2?ep? ? ? ? ?b?_分数和小数的互化ppt?b2?