问题
解答题
计算:(1)(-1
(2)-13×
|
答案
(1)(-1
)×(-31 4
),4 5
=
×5 4
,19 5
=
;19 4
(2)-13×
-0.34×2 3
+2 7
×(-13)-1 3
×0.34,5 7
=-13-0.34,
=-13.34.
计算:(1)(-1
(2)-13×
|
(1)(-1
)×(-31 4
),4 5
=
×5 4
,19 5
=
;19 4
(2)-13×
-0.34×2 3
+2 7
×(-13)-1 3
×0.34,5 7
=-13-0.34,
=-13.34.