计算下列各式.(1)34×(-57)×(-4)×(-15)(2)-14+12×[16-(-32)2].-数学

题目简介

计算下列各式.(1)34×(-57)×(-4)×(-15)(2)-14+12×[16-(-32)2].-数学

题目详情

计算下列各式.
(1)
3
4
×(-
5
7
)×(-4)×(-
1
5
)

(2)-14+12×[
1
6
-(-
3
2
)
2
]
题型:解答题难度:中档来源:不详

答案

(1)class="stub"3
4
×(-class="stub"5
7
)×(-4)×(-class="stub"1
5
)

=-(class="stub"3
4
×4)×(class="stub"5
7
×class="stub"1
5

=-3×class="stub"1
7

=-class="stub"3
7


(2)-14+12×[class="stub"1
6
-(-class="stub"3
2
)
2
]

=-1+12×[class="stub"1
6
-class="stub"9
4
]
=-1+2-27
=-26.

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