问题
填空题
30千克比25千克多______%;______千克比45千克多40%
答案
(1)(30-25)÷25,
=5÷25,
=0.2,
=20%;
(2)45×(1+40%),
=45×1.4,
=63(千克).
故答案为20、63.
30千克比25千克多______%;______千克比45千克多40%
(1)(30-25)÷25,
=5÷25,
=0.2,
=20%;
(2)45×(1+40%),
=45×1.4,
=63(千克).
故答案为20、63.