Ʒĵٶר 2011Сѧѧҵ
һ
28֣
1ֱд4ֵ֣ŵǹ⣩
53+56= 7811160339 495051 10¡10= :=
1322-199= 1.87+5.3= 2-25 =
2δ֪Xֵ 4֣
34X-38=1.75
3 16֣
13745+24745+45
89[0.75-716-14]
4ʽ 4֣
14.6ȥ1.4IJȥ35 Ƕ٣
ж 5֣
1033 0.36:8=X:25 (217+5)75 112113 +132.5---3
2һ23302134 Ƕ٣÷̽⣩
1һ壬ij߶26------( ) 2׳ijʱҳߣ˵׳ҳࡣ ( ) 3Ȼͺɵġ-------------------------------------------- ( ) 4һͼϾʵʾɷ---------------------------( )
115ĵģı6:5--------------------------( )
65 ȷĴ𰸵д 5֣
1ӻΪرʾϰ²Ķ仯Ӧ
[A ͳͼ B ͳͼ Cͳͼ ] 2XYXY=45ʱXYǣ
[A Bɷ Cɱ] 23ķĸ15ҪʹС䣬Ӧ
5 [ A 4 B 3 C 15 D 6 ]
114ƽֳɣ ݣÿס
318 [ A 18 B 54 C 6 ]
520ܽ80˿ˮУʱˮкǣ
11[ A B 20% C D 20 ]
54ġ 16֣
13.45Сʱ= Сʱ 50ƽ= 27ǧ˱ȣ
1ǧ 20ӣ %25 23450007020 ʡβԼ 41: = ( ) =25£ = %=
201511.31.13133.3%1.34С˳á<
3ǣ 6A=235B=335ôABԼǣ С
ǣ
7ʳֲˣ˺ͻ˹53ǧˣ˺Ͱײ˹40ǧˣײ˺Ͳ˹28ǧˣ˺Ͳ˹ ǧˣֲ˹ ǧˡ
8һԲһԲĵֱȣԲĸ1.8ףԲ ĸǣ
塢ͼӰֵλף4֣
10
и⣬ֻʽ㣨12֣
1֯2.5Сʱ֯3500ף㣬5
2ijרҵһ棬ÿװ30ǧˣҪ70ÿװ5ǧˣҪٸ
3һҪ8죬Ҷ10ɣͬʱ
3ʣģ
54סءȥʱƽÿСʱ50ǧףصʱƽÿСʱ60ǧףƽÿСʱжǧף
ߡ⣨24֣
1̶һ·ƻÿ4.5ǧף20ɣʵÿ6ǧףʵʼꣿñ⣩
2һεļ۸48Ԫӵļ۸ǿ
3һԲɳѣ1.5ף뾶4ףÿɳԼ1.7֡ɳԼضٶ֣
4úҶ10֣ ôѾͻҶ5֡ѶͬɶֺҶʣµǼʣµ
17ʱʣµúǶٶ֣ 201Сʱ֯ף 45ӵļ۸ǶԪ 7ˣ⣨6֣
ijͶͯƱÿ20Ԫ1 46ˣ涨ͼֹƱ ʽָֹƱʽˡ
25ţ25ţϵĿԹƱÿƱΪԭ۵80% ʽһ ʽ ˵ĹƱʽǣ
ο һ
11123 5 2X=2 6
34 17 3
4 7.17 1.6 61 1
X=1
8
1 2 99
24000 100 1 2 13 1000 1/9