1.3 有理数大小的比较-2019-2020学年七年级上册初一数学【名师学案】(湘教版)

!"#$%&' ! !" (%()*+,- ) !!!! !!# ! /L$MN4OP ! 6789:%;< ! =>?@A " """"""""""""""""""""""" " " " " " " " " """""""""""""""""""""""" " " " " " " " # ## # " #! 12 !  ¡ ! U2 ! % !  ¡ ! U2 ! $! k\U2 ! r*s�(%� ! w ! ! &! !fS�=1TS(2aE ! ��(G34( 2���(G34(2 !   ! ! $ !"# # ! ABCDEFGHEFCD #! ! $%#, " => # � 0& $ 0# $ % $ # �opY& $ °³-Y . " ' # '(0& )(0# *(% +(# $! ! $%#, " :? # !�(�Y�� ³ $ Sv-. " # # '(% ' 0$ )(0/ ' & *(0$ ' 0& +(# ' 04 &! !"�Y& $ ³´ 0& -�Y. " ' # '(04 )(0$ *($ +(& 4! !"tuSv-. " " # '( iù8)1-NpY��)1 )( iù8� -Y���  *( iù8�³-Y���³ +( NpTY $ iù8 -*�³ /! ! $%#, " @A # �� ³ ) 0& !'! %! " µ ' ' ($ ' ; ($' ) (# 6! �� ³ ) 0 $ & a 0 / 6 ! - $ ¢` ( $ * % ( 4 * % ! ( $ + ) ( 4 + ) ! £ * % ' + ) ! BC $ * % ) $ + ) 3! ��!"#ùY- ³ ) " # # 0/ 2 $ * - $ $+ ' *! " $ # % 2 03 * - $ , ) $0! " & # 0 4 / 2 0 & 4 * - $ ¢` ( $ 2 + ( 4 () *, ! ( $ % 2 ( 4 (+ *, ! £ () *, ) (+ *, ! BC $ 2 + ' $ % 2 ! " 4 # 0, , 7 2 03 3 , ! - $ ¢` ( $3 3 1 ( 43 3 1 ! ( $0 0 3 ( 40 0 3 ! £ 3 3 1 ) 0 0 3 ! BC $3 3 1 ' $0 0 3 %%%%%%%%%%%%%%%%%%%%%%%% & & & & & %%%%%%%%%%%%%%%%%%%%%%%% % % % % % ! !! ¯°)�M3%}] # ±��-.%©ª« # ² ¯°-.©ª«%}] # ³´~�©ª«}%"�] ¯° ! $ !"# $ ! AB-6EFCD ,! (�Y * �Yì3ù¶-ð?êëf $ \ * $ 0* $ 0# - ³tu. " ! # '(0* ' * ' 0# )(0# ' 0* ' * *(* ' 0# ' 0* +(* ' 0* ' 0# 7!* $ + $ , /pY�Yì3-h,?êëf $ \�/pY &iù8° -. " ! # '(* )(+ *(, +( vuv� #%! �Yì3$ºef!"#Y-ð $ %�}e> ' ' ( �Ê�� !# # $ $ 0$ $ % $ 0%!/! - $ �"k�/lmnBl $ $* ' $,!+ ' , ' ( ( * %%%%%%%%%%%%%%%%%%%%%%%% & & & & & %%%%%%%%%%%%%%%%%%%%%%%% % % % % % ! !! µ�3h¯°Dg3%}] # m¶ & j· # ¸¹� 3º¡»¼½ # 8m¾,±E3hAX�/0Dg3 %q # ³´§�8E3hA%Cz�¿À8}] & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & ! *+BC)%0D ,-BC?EF !* !!! ##! !"#Y& $ ° -. " ! # '( # $%#7 )(0 # $%#7 *(0 " 0$%#7 # +(0 ( $%#7 ( #$! !"�� ³å@Sv-. " " # '(0& ' 04 )(0 " 0$ # '( 0$ ( *(0 # $ ) 0 # & +( ( 0 # $ () 0 # / #&! �� 0%!& $ 0 # & $ 0 # $ - ³ $ Ð"Sv-. " # # '(0 # & ) 0%!& ) 0 # $ )(0%!& ) 0 # & ) 0 #