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.

判断题
判断题