6: 96÷100=0.96=96%
(100--96)÷100=0.04=4%
7: ﹙1﹚ 14870÷51100≈0.291=29.1%
(2) ﹙51100--14870﹚÷51100≈0.709=70.9%
8: 略
9: ﹙1﹚ 1200÷2500=0.48=48%
﹙2﹚1300÷2500=0.25=52%
10: 60%
提交 重置