꼶ѧϲ
Ԫ
༶ ȼ
һһ
1.ٷ֮ʮд 14.5% 2.ʦӹ200кϸ198ĺϸǣ 3. = : = 0.6 = 75= %
25
24.67%0.660.667Уǣ Сǣ
35.һ803.230( )
6. 20ǧ˱25ǧ٣ %25ǧ˱20ǧ˶ࣨ % 7.һз240Ԫ80ԪӵļǮµģ %µļǮзģ %
8.ڡʮһУϴ»5%ôּԭ۵ģ % 9.ӳʮ·۶Ⱦ·15%ʮ·۶൱ھ·ݵģ %
10.һ35ʣ Ȿȫ꣬ðٷʾǣ %
11.20ܽ80ˮУռˮģ
1
12.Ů Ů( )
6 жϡ
2
1.һúȥ5 ֣Ҳȥ40֡ 32.һȥ4 ʣ25%
43.5ȼ20 4.Сӷѿʵ飬ѿ110% 5.һƷν10ּ൱ԭ۵80
ѡһѡ
1. 10ˮ10%ټ10%ǣ
A. 10 B. 10 C. 10 2. 68ĺ%ͣ A. ԭ100 B. Сԭ
1
C. 100
3.ˮĺ10 ˮı( ) A. 110 B. 111 C. 19
4.һ羭ֺɻ95%,Ϊ˱֤ɻ380ãӦ磨 á
A. 300 B. 400 C. 450 5.һƿϣ70%140ƿԭжٺʽΪ
A. 14070% B. 14070% C. 140170%
ġѱ
ٷ 5 70 С 1.2 3 25 塢㡣
1.ֱд
5503.5= 175= 260= 4590= 4.8=
62213341.6= = 1.20.3= = 36= 53641092.ϲķ㡣 415371 12540.82.5 39 5573838
54 5£5 402.8406.240
99
3.̡ⷽ
x-65%x=10.5 1.4+30%x=2.6
ʵ⡣
1.һļѾ1500֣ռ60%ļһж֣
2.ϣСѧշֽ2.5t,Сѧշֽ1.7t 1СѧյķֽϣСѧٰٷ֮
2÷ֽֽ80Щֽٶֽ
3. һһ25%һҪ48ԪһҪǮ
4. 400ã100áٰٷ֮
5. һֲƷԭÿijɱ80Ԫ¹պÿɱ15ÿƷijɱǶԪ
6.ͼʵСѧƺֵԭ10% 1ƺǶ٣
5
2ÿƽͶ300ԪͶԪ
7.۸6·ݱ5·ݽ208·ݱ6·308µļ۸5±˻ǽˣ仯ȶ٣