问题
填空题
20相当于40的______%,40是20的______%,比20多20%的数是______,20比______少20%.
答案
(1)20÷40=50%;
(2)40÷20=200%;
(3)20×(1+20%),
=20×120%,
=24;
(4)20÷(1-20%),
=20÷80%,
=25.
故答案为:50,200,24,25.
20相当于40的______%,40是20的______%,比20多20%的数是______,20比______少20%.
(1)20÷40=50%;
(2)40÷20=200%;
(3)20×(1+20%),
=20×120%,
=24;
(4)20÷(1-20%),
=20÷80%,
=25.
故答案为:50,200,24,25.