一,1(4/3)(1.13) 2(4)(25)(80) 3 (12.5%)(0.125)(1/8) 4(96)(不合格)(4) 5(120)(400) 6(10/9) 7(2:5) 8(2/3)(3:1) 9(1400) 10 (81) 11(2/5)
二,1,(横着) 9/10,1/9,3/7,2/3,5/2,2,35/6,35/6
2,5:120(1/24),4:17 (4/17),25:1 (25),10:9(10/9)
3,3/10,3 ,10
4,25/12 ,31/15 ,5/11 ,1/2
三,1(√),2(×),3(√),4(×)
四,1(②) ,2(②) ,3(③),4(①)
五,1(平均分成8份,涂6份) ,2(涂1格) ,3(长方)(70)(350)
六,1 2000*9.6*0.9=17280,2 60-60*5/1=48 ,3 750+50=800 750/800=93.75% ,4 ①140/40=350% ,②38.7%(不太清楚,我直接答的) ,5 (430-2*20)/6=65