计算:(1)-41-29-(-20)×2+33(2)(34+56-112)÷124.-数学

题目简介

计算:(1)-41-29-(-20)×2+33(2)(34+56-112)÷124.-数学

题目详情

计算:
(1)-41-29-(-20)×2+33
(2)(
3
4
+
5
6
-
1
12
1
24
题型:解答题难度:中档来源:不详

答案

(1)-41-29-(-20)×2+33
=-41-29+40+33
=-70+73
=3;

(2)(class="stub"3
4
+class="stub"5
6
-class="stub"1
12
)÷class="stub"1
24

=(class="stub"3
4
+class="stub"5
6
-class="stub"1
12
)×24
=class="stub"3
4
×24+class="stub"5
6
×24-class="stub"1
12
×24
=18+20-2
=36.

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