脱式计算.(1)56×65-910÷95(2)(16-112)×(1625-45)(3)(57×45+47)÷47(4)15÷[(23+15)×113]-六年级数学

题目简介

脱式计算.(1)56×65-910÷95(2)(16-112)×(1625-45)(3)(57×45+47)÷47(4)15÷[(23+15)×113]-六年级数学

题目详情

脱式计算.
(1)
5
6
×
6
5
-
9
10
÷
9
5
(2)(
1
6
-
1
12
)×(
16
25
-
4
5
(3)(
5
7
×
4
5
+
4
7
)÷
4
7
(4)
1
5
÷[(
2
3
+
1
5
)×
1
13
]
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
6
×class="stub"6
5
-class="stub"9
10
÷class="stub"9
5

=1-class="stub"1
2

=class="stub"1
2


(2)(class="stub"1
6
-class="stub"1
12
)×(class="stub"16
25
-class="stub"4
5

=class="stub"1
12
×(-class="stub"4
25

=-class="stub"1
75


(3)(class="stub"5
7
×class="stub"4
5
+class="stub"4
7
)÷class="stub"4
7

=(class="stub"4
7
+class="stub"4
7
÷class="stub"4
7

=class="stub"8
7
÷class="stub"4
7

=2;

(4)class="stub"1
5
÷[(class="stub"2
3
+class="stub"1
5
)×class="stub"1
13
]
=class="stub"1
5
÷[class="stub"13
15
×class="stub"1
13
]
=class="stub"1
5
÷class="stub"1
15

=3.

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