13.8除以2.5巧算
问题描述:
13.8除以2.5巧算
答
13.8÷2.5
=(13.8×4)÷(2.5×4)
=55.2÷10
=5.52
13.8除以2.5巧算
13.8÷2.5
=(13.8×4)÷(2.5×4)
=55.2÷10
=5.52