问题
解答题
计算题 (1)17-8÷(-2)+4×(-5)(2)-2
|
答案
(1)原式=17+4-20
=1;
(2)原式=-
+5 2
×(-28 5
)×(-1 2
)5 14
=-
-5 2
×(-14 5
)5 14
=-
+15 2
=-1
.1 2
计算题 (1)17-8÷(-2)+4×(-5)(2)-2
|
(1)原式=17+4-20
=1;
(2)原式=-
+5 2
×(-28 5
)×(-1 2
)5 14
=-
-5 2
×(-14 5
)5 14
=-
+15 2
=-1
.1 2