计算下面各题,能简便的要简便计算.7×79+27×5959×25÷23(512+19-518)×36[1-(15+23)×413]÷1120(18+16)÷524-23×144013×(26×340)

题目简介

计算下面各题,能简便的要简便计算.7×79+27×5959×25÷23(512+19-518)×36[1-(15+23)×413]÷1120(18+16)÷524-23×144013×(26×340)

题目详情

计算下面各题,能简便的要简便计算.
7
9
+
2
7
×
5
9
5
9
×
2
5
÷
2
3
5
12
+
1
9
-
5
18
)×36
[1-(
1
5
+
2
3
)×
4
13
11
20
1
8
+
1
6
)÷
5
24
-
2
3
×
1
4
40
13
×(26×
3
40
题型:解答题难度:中档来源:不详

答案

(1)7×class="stub"7
9
+class="stub"2
7
×class="stub"5
9

=class="stub"49
9
+class="stub"10
63

=5class="stub"38
63


(2)class="stub"5
9
×class="stub"2
5
÷class="stub"2
3

=class="stub"2
9
÷class="stub"2
3

=class="stub"1
3


(3)(class="stub"5
12
+class="stub"1
9
-class="stub"5
18
)×36
=class="stub"5
12
×36+class="stub"1
9
×36-class="stub"5
18
×36
=15+4-10
=19-10
=9;

(4)[1-(class="stub"1
5
+class="stub"2
3
)×class="stub"4
13
class="stub"11
20

=[1-class="stub"13
15
×class="stub"4
13
class="stub"11
20

=[1-class="stub"4
15
class="stub"11
20

=class="stub"11
15
÷class="stub"11
20

=1class="stub"1
3


(5)(class="stub"1
8
+class="stub"1
6
)÷class="stub"5
24
-class="stub"2
3
×class="stub"1
4

=class="stub"7
24
÷class="stub"5
24
-class="stub"2
3
×class="stub"1
4

=class="stub"7
5
-class="stub"1
6

=1class="stub"7
30


(6)class="stub"40
13
×(26×class="stub"3
40

=class="stub"40
13
×class="stub"3
40
×26
=class="stub"3
13
×26
=6.

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