计算:(1)(-4)-(+11)-(-9)(2)(112-38+712)×(-24)(3)412÷[(-3)2÷(-2)+|-2|].-数学

题目简介

计算:(1)(-4)-(+11)-(-9)(2)(112-38+712)×(-24)(3)412÷[(-3)2÷(-2)+|-2|].-数学

题目详情

计算:
(1)(-4)-(+11)-(-9)
(2)(1
1
2
-
3
8
+
7
12
)×(-24)

(3)4
1
2
÷[(-3)2÷(-2)+|-2|].
题型:解答题难度:中档来源:不详

答案

(1)原式=-4-11+9=-6;
(2)原式=-36+9-14=-41;
(3)原式=class="stub"9
2
÷[9÷(-2)+2]=class="stub"9
2
÷(-class="stub"9
2
+2)=class="stub"9
2
×(-class="stub"2
5
)=-class="stub"9
5

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