(45)2÷(-54)-2+(π-3)0-14÷(-2)-3.-数学

题目简介

(45)2÷(-54)-2+(π-3)0-14÷(-2)-3.-数学

题目详情

(
4
5
)2÷(-
5
4
)-2+(π-3)0-
1
4
÷(-2)-3
题型:解答题难度:中档来源:不详

答案

原式=(class="stub"4
5
)2÷class="stub"1
(-class="stub"5
4
)2
+1-class="stub"1
4
÷class="stub"1
(-2)3

=class="stub"16
25
÷class="stub"16
25
+1-class="stub"1
4
÷class="stub"1
-8

=class="stub"16
25
×class="stub"25
16
+1-class="stub"1
4
×(-8)
=1+1+2
=4.

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