问题
填空题
100比80多______%
12千克比______少30%
______比75吨多20%
答案
(1)(100-80)÷80,
=20÷80,
=25%;
(2)12÷(1-30%),
=12÷0.7,
=
(千克);120 7
(3)75×(1+20%),
=75×1.2,
=90(吨);
故答案为:25%,
千克,90吨.120 7
100比80多______%
12千克比______少30%
______比75吨多20%
(1)(100-80)÷80,
=20÷80,
=25%;
(2)12÷(1-30%),
=12÷0.7,
=
(千克);120 7
(3)75×(1+20%),
=75×1.2,
=90(吨);
故答案为:25%,
千克,90吨.120 7