问题
填空题
比20多5%的数是______,50比______少20%.
答案
①20×(1+5%),
=20×1.05,
=21;
②50÷(1-20%),
=50÷0.8,
=62.5;
故答案为:21,62.5.
比20多5%的数是______,50比______少20%.
①20×(1+5%),
=20×1.05,
=21;
②50÷(1-20%),
=50÷0.8,
=62.5;
故答案为:21,62.5.