(1)-9+0.25-(-8)+14(2)-1+13×(-3)(3)(34-59+712)÷(-136)(4)-14-(-2)3+8÷0.25×(-2)2.-数学

题目简介

(1)-9+0.25-(-8)+14(2)-1+13×(-3)(3)(34-59+712)÷(-136)(4)-14-(-2)3+8÷0.25×(-2)2.-数学

题目详情

(1)-9+0.25-(-8)+
1
4

(2)-1+
1
3
×(-3)

(3)(
3
4
-
5
9
+
7
12
)÷(-
1
36
)

(4)-14-(-2)3+8÷0.25×(-2)2
题型:解答题难度:中档来源:不详

答案

(1)原式=-9+class="stub"1
4
+8+class="stub"1
4
=-class="stub"1
2

(2)原式=-1-1=-2;
(3)原式=(class="stub"3
4
-class="stub"5
9
+class="stub"7
12
)×(-36)
=class="stub"3
4
×(-36)-class="stub"5
9
×(-36)+class="stub"7
12
×(-36)
=-27+20-21
=-28;
(4)原式=-1+8+8×4×4
=-1+8+128
=135.

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