优惠问题--2024五年级奥数精讲精练含答案.pdf
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x(34-2)=524(5G)r:r.:tt-tt;T-i=t:Ji/i 1:.t 524 J1j 0 2.2574=61 r+rA*1r 1 hx 1*-l.tTAbg.1-J;./J 5R/J,r)I 7TJ;L/I bT:.:.-1/u,.0 25Xl6.8-6Xl6.872=369.6(JG):(25-6)Xl6.8+6Xl6.872=369.6(jc):,g.tT 369.6 7Go 3.2573=81 2slnn 1,rJ!117G$to rmmr oo BJ 24 t q=i,8 t 7G *1i ,ff 8X2=16(re)PJ$1Jto 87(8+1)X35+16X3572=595(JG)frfr r:r 1:r:P-a:Ei-tt;595-:Ji/i rfn:f:;r:1.t J-C 0 4.2974=7 l r+r A*1r 1 Ei r x l c TAb gJ.J;./J/J,01 J 1/lbfXIJu,t.:,;.o rmmTffiBJ 28 fr q=i,-*PJ$1t,_W.AbgJ.J;.1/I bfX.1/u,l!;.o i)I(3 1.:tlo*3 ill.5#a+-ill 1#R,Jg.,1frn 3x8+1 x3=27(jc):tio*2 ill.5#a-i-13.+2 ill.3#a-ill.,Jg.,1fr Jg 2X8+2X5=26(jc):Y1t 26 7Go 2.4X4=16():tio*2 5-lf 7 fo 2 5-lfifJffl:900 x2+160 x2=2120(jc):tlO*1 5-lf 7 ,3 5-lf 3:900 xl+400 x3=2100(jc)=*flBJg.fflY 2100 5to 3.1688 7 99=1 7 5(jc)17X(99-70)+5=498(JG):*J!14xifffi11498 7Go 4.35x(3007100)=105(jc)300-105=195(jc)ggt it,5-lf 5t *300 5c 13)lJ ifb at,1mi.R1tT 195 5c,JfJU 105 5co 105-35=70(jc)1mW *105 jc BJ lJ iPn at,9 fffi 11 70 JG,JfJ U 35 7Go mgJtittt.flf*35 JG r2 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