问题
解答题
16米比20米短______%,18米比______长20%.
答案
(1)(20-16)÷20,
=4÷20,
=20%;
(2)18÷(1+20%),
=18÷120%,
=15(米);
故答案为:20,15米.
16米比20米短______%,18米比______长20%.
(1)(20-16)÷20,
=4÷20,
=20%;
(2)18÷(1+20%),
=18÷120%,
=15(米);
故答案为:20,15米.