计算下面各题.(1)4768-5768÷56×27(2)(0.51÷1.7+4.2)×4.5(3)56÷58+38×49(4)716÷[914×(56-49)].-数学

题目简介

计算下面各题.(1)4768-5768÷56×27(2)(0.51÷1.7+4.2)×4.5(3)56÷58+38×49(4)716÷[914×(56-49)].-数学

题目详情

计算下面各题.
(1)4768-5768÷56×27
(2)(0.51÷1.7+4.2)×4.5
(3)
5
6
÷
5
8
+
3
8
×
4
9
(4)
7
16
÷[
9
14
×(
5
6
-
4
9
)].
题型:解答题难度:中档来源:不详

答案

(1)4768-5768÷56×27,
=4768-5768÷56×27,
=4768-103×27,
=4768-2781,
=1987;

(2)(0.51÷1.7+4.2)×4.5,
=(0.3+4.2)×4.5,
=4.5×4.5,
=20.25;

(3)class="stub"5
6
÷class="stub"5
8
+class="stub"3
8
×class="stub"4
9

=class="stub"4
3
+class="stub"1
6

=class="stub"3
2


(4)class="stub"7
16
÷[class="stub"9
14
×(class="stub"5
6
-class="stub"4
9
)],
=class="stub"7
16
÷[class="stub"9
14
×class="stub"7
18
],
=class="stub"7
16
÷class="stub"1
4

=class="stub"7
4

更多内容推荐