题目内容
计算
(1)0.47-4-(-1.53)-1;
(2)(0.75)+(-2.8)+(-0.2)-1.25.
(1)0.47-4-(-1.53)-1;
(2)(0.75)+(-2.8)+(-0.2)-1.25.
(1)原式=0.47-4+1.53-1
=2-5
=-3;
(2)原式=0.75+(-2.8-0.2-1.25)
=0.75-4.25
=-3.5.
=2-5
=-3;
(2)原式=0.75+(-2.8-0.2-1.25)
=0.75-4.25
=-3.5.
练习册系列答案
相关题目