计算:(1)35×85=______;(2)(-59)×(-310)=______;(3)25÷(-23)______;(4)(-38)÷27=______.-数学

题目简介

计算:(1)35×85=______;(2)(-59)×(-310)=______;(3)25÷(-23)______;(4)(-38)÷27=______.-数学

题目详情

计算:
(1)
3
5
×
8
5
=______;
(2)(-
5
9
)×(-
3
10
)
=______;
(3)
2
5
÷(-
2
3
)
______;
(4)(-
3
8
2
7
=______.
题型:填空题难度:中档来源:不详

答案

(1)原式=class="stub"3×8
5×5

=class="stub"24
25


(2)原式=class="stub"5
9
×class="stub"3
10

=class="stub"1
6


(3)原式=class="stub"2
5
×(-class="stub"3
2

=-class="stub"3
5


(4)原式=-class="stub"3
8
×class="stub"7
2

=-class="stub"21
16

故答案为:(1)class="stub"24
25
;(2)class="stub"1
6
;(3)-class="stub"3
5
;(4)-class="stub"21
16

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