问题
解答题
计算: (1)0÷(-199
(2)(-5
(3)1.4÷(-2
|
答案
(1)原式=0;
(2)原式=(-
-11 2
)×11 5 3 11
=-
-3 2 3 5
=-2.1;
(3)原式=
×(-7 5
)5 14
=-
.1 2
计算: (1)0÷(-199
(2)(-5
(3)1.4÷(-2
|
(1)原式=0;
(2)原式=(-
-11 2
)×11 5 3 11
=-
-3 2 3 5
=-2.1;
(3)原式=
×(-7 5
)5 14
=-
.1 2