ʱ : һ 小升初知识点复习专项练习-数的运算20小数乘法-通用?2015)(附答? - 百度文库ϿʼĶ
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С֪ʶ㸴ϰרϰ-20С
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һѡ⣨10С⣩ 12.50.4ĻУ A ûС BһλС C2λС
20.250.40.254Ľǣ A 1 B0.4 C0.16 D1.6
3漸ʽļУڣ ʽļС A 12.50.678 B1.25678 C12.56.78
4±̫֮ľ룬Ŀ̫ľԼǻ̫3
̫ľ ľ ǧף 108.0 227.9 778.3 1427.0 2870.0
A Bľ C D
5ҹԼ13˿ڣÿÿԼ1ǮôÿܽԼ A 1.3 B13 C130 D1300
6˵ȷǣ A78 0.1DZʾ78ʮ֮һǶ BҪͳһѧѧοԳɼ˲Ҫѡͳͼ C
һƷȽۺǼۣ۸ᷢ仯 Dǧˣֻ 11
750.8ʾ A 50.8Ƕ B0.85Ƕ C5ʮ֮˶
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8aa0һСaȽϣ A һ Ba CСa Da
9꼻ٱ4СʱСʱ꼻0.02Լ ң A 0.8 B5 C0.08 D4
10Ϊ2.7538=104.527.5 =10.45 A 0.038 B0.38 C3.8 D38
12һ1.2һ1 _________ ж϶Դ
13ʽеĺʵλС㣬ʹʽ 5825=14.5 176463=0.28
1440.25 Ļ1 _________
15һСƶһλõԭС3.06ԭ _________
162.54.4м2.54.4= _________ _________ _________ 2.54.4= _________ _________ + _________ _________
17һСһС _________ ж϶Դ
18һС1һС _________ ж϶Դ
19ںϡ=
7.20.9 _________ 7.2 1.043.57 _________ 3.570.14 5.24 _________ 5.240.7
3.20.01 _________ 3.20.01
20С˷˷ȫͬ _________ ж϶Դ 21?̨ģ⣩0.06250.250.5256
22ʽ㣬Ҫ㣮
0.559.6 3.642.0.133.01һλС
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8
28Сѧչڹѧͬѧҵʱռֽ3ȫУռֽ225.67kg㣬ȫУһ꣨8.5¼㣩Լռֽǧˣ
29ʽ㲢㣺0.286.45
30һӶκÿγ0.2ףԭף
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С֪ʶ㸴ϰרϰ-20С
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һѡ⣨10С⣩ 12.50.4ĻУ A ûС B һλС C 2λС
㣺С˷ ר⣺˳ С˷ļ㷽ǣȰ˷ļ㷽ٿһмλ
СʹӻұλС㣬˵ûСλʱҪǰ0㣬ٵС㣮ʽĻ 𣺽⣺2.50.4=1
1ûС ѡA ҪѧС˷
20.250.40.254Ľǣ A 1 B 0.4 C 0.16 D1 .6
㣺С˷С ר⣺ѹ⣮ С˳м㼴ɣ 𣺽⣺0.250.40.254
=0.10.254 =0.44 =1.6 ѡD ıǿ˳˳м㣬еͬѧܾ
Ϊ1ѡAʵҲе0.250.40.250.4Чã
3漸ʽļУڣ ʽļС
12.50.678 1.25678 12.56.78 A B C
㣺С˷ ר⣺˳ ݻĹɣȽһΪ12.5ٱȽһĴС⣮ 𣺽⣺Ϊ1.25678=12.567.8
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