2017秋浙教版七年级数学上册高效训练（pdf版）:3.4 实数的运算 （2份打包）

! ("# *# & !*""" $!%! >%-:; $"% !"#$ 4!563 !!�â (5%5&!»)®I(¯ )!*!/!0�F,-)5!!0!&!(! ª,- &5槡#(¯²D#")"$! â (5%5& )*̄ )i¯ *¼± -*̄ *i¯ /¼± ,*̄ /i¯ 0¼± .*̄ *i¯ 0¼± &!.Ó=!5槡& =1=槡&5槡( =1=&5槡( =(Ò:M#"-"$! )*0 -*! ,*槡& .*槡(5! (!;�¡)s�QË!±]�â (5%5(! â (5%5( �gA #S !+ _!g»( 2M#"-"$! )*% -*槡$ ,*& .*5槡$ 7!893 %!l&.ÓË�ò­^&#!$ (槡!&(">"槡&# % #&$ (( "A" 槡!!5! ( ! $!u�¡V�O(¡´M ( 89!uסV�O(ÐÑMu�¡V �OÐÑ( $Ö!ªuסV�O(¡´öS"+!# 89"#Ò :ÊW' 0!! 89$! +!�_(£µ @#P$i��_± B#T$ÏÐ @3!& LB &# L3 /!' P?T&$!»�¡�_Z£µS !&&!$ P(kl�Iý 'nÐI!�ç"$"T! :!,;3 #!.Ó#Ò:ÊW' 0!0!$& #!$ !& 1槡(4槡+ %""#&$ ( 槡&04 ! 槡( 5 (!槡 +2&% #($ 槡!'2槡'4 &# 槡& %""#%$ 槡$4槡&! 槡!$ ! ,"#!$ !& 1槡(4槡+)%!#%! #&$ (槡&04 ! 槡( 5 (!槡 +2&)0!+&! #($ 槡!'2槡'4 &# 槡& )$!$!! #%$槡$4槡&! 槡!$ )&!+$! '!%5槡((X)��S +!^)��S 1!4 1 + (s#Ò:ÊW' 0!00!$! ,"C%5槡((X)�� +3&!^)�� 13&5槡( ! D 1+ 3 &5槡( & )0!!(%! %&'( <!=>EF3 /!ÃL!"Âð& #!$l&.ÓË.Ó#Ò:ÊW' 0!0!$! !槡&4槡(i槡&4( %" $ 槡( 4槡#i $ (槡4#! #&$xy#!$%(.ÓÒ:!÷�}¹(~�&3ú,-» I!Àl&�}¹(~�.Ó&!槡&4槡' %"槡$4 %/ 槡$ ! ,"#!$!槡&4槡()&!%$!槡&4()&!%$! " $槡( 4槡#)(!%&! $ (槡4#)(!%&! #&$Ë#!$%(.ÓÒ:��~�&槡+ 4槡13 +4槡 1#+%0! 1%0$! !槡&4槡' 3槡&4' 3槡!+ 3%! "槡$4 %/ 槡$ 3 $4 %/ 槡 $ 3槡%/ 3#! )*+, !!#&0!$'�Â�Ã�Ä��'!+ B'' G$.Ó& #5&$ &1 =槡&5!=5 ( 槡&#! ,"±�3%1槡&5!5(3槡& " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " ! $$ !"#$%#&$'() !)""" !!""n$IMN !",-"Õ",9:¼)#1d",9:¼)P."�J n:�M4æM"�:�¶"·¸:Q[!�ç´¹'"�n 78¹'ºè,9:!éê"6ë�ì,1d",í¦9: N�49:îÙÕ"ïðñ.Âò0"�óÙÕ",ef9 :�"L��ôõµ909:îÎ{9:!�ç´Íd"T ö�L¨Á÷ø,ùúWg"56»û�L¨,ü�ý0P þ,ùú1Ð]"\>ÿÍd"! #.$"ìaë¡>îï(v) +!1!=b�Ë«(FÓ� !&+(13 +1槡 1+51#+11A0$!� ((&3 槡(1& (5& 槡3 $ !ª +(#$( %$3""""! /0"°B;¯[^(�3MN!êw[ ;¯ST&NÚ f!+(#$(%$3+(槡$1%$5% 3+((3 槡+1( +5( 3!! ;V"!! $!%! >%-:; !!( &'!槡 (+(sÊW' 0!00! S#"-"$! )*(!0%/ -*(!0$0 ,*(!0$! .*(!0$% &!=&5槡$ =1=(5槡$ =(sM#")"$! )!! -!5! ,!$5&槡$ .!&槡$5$ /0"Á.^���$3âãR%û°¥!^���$3â ãR%û3­®$!pq=&5槡$ =3槡$ 5&!=(5槡$ =3(5槡$ !p q=&5槡$ =1=(5槡$ =3槡$5&1(5槡$ 3!!>? )! (Fv) #!2!7(첯D)®I(w¥�â (5%5!!ª!"Ö ×VW(M#"-"$! â (5%5! )!#1217A0 -!#1217>0 ,!#7A27 .!#2>#7 /0"/$дfq¡4!5(>#>5&!5&>2>5!!0>7>!!pq