计算:(1)(-8)+(+0.25)-(-9)+(-14)(2)-14÷(-32)+8×(-32)(3)(34-56+712)÷(-136)(4)-14-16×[2-(-3)2].-数学

题目简介

计算:(1)(-8)+(+0.25)-(-9)+(-14)(2)-14÷(-32)+8×(-32)(3)(34-56+712)÷(-136)(4)-14-16×[2-(-3)2].-数学

题目详情

计算:
(1)(-8)+(+0.25)-(-9)+(-
1
4

(2)-14÷(-
3
2
)+8×(-
3
2

(3)(
3
4
-
5
6
+
7
12
)÷(-
1
36

(4)-14-
1
6
×[2-(-3)2].
题型:解答题难度:中档来源:不详

答案

(1)原式=-8+0.25+9-class="stub"1
4
=-8+9=1;
(2)原式=14×class="stub"2
3
-8×class="stub"3
2
=class="stub"28
3
-class="stub"24
2
=-9;
(3)原式=(class="stub"3
4
-class="stub"5
6
+class="stub"7
12
)×(-36)=-27+30-21=-18;
(4)原式=-1-class="stub"1
6
×(2-9)=-1+class="stub"7
6
=class="stub"1
6

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