问题
填空题
168.54+368.54+568.54+768.54+968.54=______.
答案
168.54+368.54+568.54+768.54+968.54,
=168.54+(168.54+200)+(168.54+400)+(168.54+600)+(168.54+800),
=168.54×5+(200+400+600+800),
=842.7+2000,
=2842.7;
故答案为:2842.7.