问题
填空题
40是50的______%;40比50少______%;30比______少25%.
答案
(1)40÷50=0.8=80%;
答:40是50的80%.
(2)(50-40)÷50,
=10÷50,
=20%;
答:40比50少20%.
(3)30÷(1-25%),
=30÷
,3 4
=30×
,4 3
=40;
答:30比40少25%.
故答案为:80,20,40.
40是50的______%;40比50少______%;30比______少25%.
(1)40÷50=0.8=80%;
答:40是50的80%.
(2)(50-40)÷50,
=10÷50,
=20%;
答:40比50少20%.
(3)30÷(1-25%),
=30÷
,3 4
=30×
,4 3
=40;
答:30比40少25%.
故答案为:80,20,40.