问题
填空题
比30少20%的数是______,20米比______米多25%.
答案
(1)30×(1-20%),
=30×0.8,
=24;
(2)20÷(1+25%),
=20÷1.25,
=16(米);
故答案为:24,16.
比30少20%的数是______,20米比______米多25%.
(1)30×(1-20%),
=30×0.8,
=24;
(2)20÷(1+25%),
=20÷1.25,
=16(米);
故答案为:24,16.