问题
解答题
计算: (1)(-2)-(-9) (2)0-11 (3)5.6-(-4.8) (4)(-4
|
答案
(1)(-2)-(-9)=-2+9=7;
(2)0-11=0+(-11)=-11;
(3)5.6-(-4.8)=5.6+4.8=10.4;
(4)(-4
)-51 2
=-103 4
.1 4
计算: (1)(-2)-(-9) (2)0-11 (3)5.6-(-4.8) (4)(-4
|
(1)(-2)-(-9)=-2+9=7;
(2)0-11=0+(-11)=-11;
(3)5.6-(-4.8)=5.6+4.8=10.4;
(4)(-4
)-51 2
=-103 4
.1 4