问题 解答题 5元4角8分=______元2厘米=______米3吨68千克=______吨3.2时=______分. 答案 (1)5元4角8分=5.48元;(2)2厘米=0.02米;(3)3吨68千克=3.068吨;(4)3.2时=192分.故答案为:5.48,0.02,3.068,192.