(1)4÷45-45÷4(2)1÷[(712-16)×24](3)6÷23+4÷13(4)718×14+34÷187(5)(34+29)÷136-11(6)(19+120)×118.-数学

题目简介

(1)4÷45-45÷4(2)1÷[(712-16)×24](3)6÷23+4÷13(4)718×14+34÷187(5)(34+29)÷136-11(6)(19+120)×118.-数学

题目详情

(1)4÷
4
5
-
4
5
÷4
(2)1÷[(
7
12
-
1
6
)×24]
(3)6÷
2
3
+4÷
1
3

(4)
7
18
×
1
4
+
3
4
÷
18
7

(5)(
3
4
+
2
9
)÷
1
36
-11
(6)(19+
1
20
)×
1
18
题型:解答题难度:中档来源:不详

答案

(1)4÷class="stub"4
5
-class="stub"4
5
÷4
=4×class="stub"5
4
-class="stub"4
5
×class="stub"1
4

=5-class="stub"1
5

=4class="stub"4
5

(2)1÷[(class="stub"7
12
-class="stub"1
6
)×24]
=1÷[class="stub"5
12
×24]
=1÷10
=class="stub"1
10

(3)6÷class="stub"2
3
+4÷class="stub"1
3

=6×class="stub"3
2
+4×class="stub"3
1

=9+12
=21;
(4)class="stub"7
18
×class="stub"1
4
+class="stub"3
4
÷class="stub"18
7

=class="stub"7
72
+class="stub"3
4
×class="stub"7
18

=class="stub"7
72
+class="stub"7
24

=class="stub"28
72

=class="stub"7
18

(5))(class="stub"3
4
+class="stub"2
9
)÷class="stub"1
36
-11
=class="stub"35
36
×36-11
=35-11
=24;
(6))(19+class="stub"1
20
)×class="stub"1
18

=19×class="stub"1
18
+class="stub"1
20
×class="stub"1
18

=1class="stub"1
18
+class="stub"1
360

=1class="stub"7
120

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