下面各题写出必要的计算过程,能简便计算的要简便计算.415×75718×914914×21×291114×710×83334×25+35×3445×58+512×45920×(23-37)(56+58

题目简介

下面各题写出必要的计算过程,能简便计算的要简便计算.415×75718×914914×21×291114×710×83334×25+35×3445×58+512×45920×(23-37)(56+58

题目详情

下面各题写出必要的计算过程,能简便计算的要简便计算.
4
15
×75
7
18
×
9
14
9
14
×21×
2
9
11
14
×
7
10
×
8
33
3
4
×
2
5
+
3
5
×
3
4
4
5
×
5
8
+
5
12
×
4
5
9
20
×(
2
3
-
3
7
5
6
+
5
8
)×
8
25
4
15
×25
8
27
×39
45×
6
35
13×
5
26
5
27
×9×
3
5
4
5
×
5
8
×
5
12
9
14
×21×
2
9
7
9
×
27
49
×
5
7
17×
9
16
3
4
+
5
8
)×32
5
9
×
3
4
+
5
9
×
1
4
5
4
×
1
8
×16
1
5
+
2
9
×
3
10
44-72×
5
12
题型:解答题难度:中档来源:不详

答案

class="stub"4
15
×75=20;
class="stub"7
18
×class="stub"9
14
=class="stub"1
4


class="stub"9
14
×21×class="stub"2
9
=3;

class="stub"11
14
×class="stub"7
10
×class="stub"8
33
=class="stub"2
15


class="stub"3
4
×class="stub"2
5
+class="stub"3
5
×class="stub"3
4

=(class="stub"2
5
+class="stub"3
5
)×class="stub"3
4

=class="stub"3
4


class="stub"4
5
×class="stub"5
8
+class="stub"5
12
×class="stub"4
5

=class="stub"1
2
+class="stub"1
3

=class="stub"5
6


class="stub"9
20
×(class="stub"2
3
-class="stub"3
7
),
=class="stub"9
20
×class="stub"2
3
-class="stub"9
20
×class="stub"3
7

=class="stub"3
10
-class="stub"27
140

=class="stub"3
28


class="stub"5
6
+class="stub"5
8
)×class="stub"8
25

=class="stub"5
6
×class="stub"8
25
+class="stub"5
8
×class="stub"8
25

=class="stub"4
15
+class="stub"1
5

=class="stub"7
15


class="stub"4
15
×25class="stub"8
27
×39,
=class="stub"4
15
×class="stub"683
27
×39,
=class="stub"35516
135


45×class="stub"6
35
=class="stub"54
7


13×class="stub"5
26
=class="stub"5
2
class="stub"5
27
×9×class="stub"3
5
=1;

class="stub"4
5
×class="stub"5
8
×class="stub"5
12
=class="stub"5
24


class="stub"9
14
×21×class="stub"2
9
=3;

class="stub"7
9
×class="stub"27
49
×class="stub"5
7
=class="stub"15
49


17×class="stub"9
16
=9class="stub"9
16


class="stub"3
4
+class="stub"5
8
)×32,
=class="stub"3
4
×32+class="stub"5
8
×32,
=24+20,
=44;

class="stub"5
9
×class="stub"3
4
+class="stub"5
9
×class="stub"1
4

=(class="stub"3
4
+class="stub"1
4
)×class="stub"5
9

=class="stub"5
9


class="stub"5
4
×class="stub"1
8
×16=class="stub"5
2


class="stub"1
5
+class="stub"2
9
×class="stub"3
10

=class="stub"1
5
+class="stub"1
15

=class="stub"4
15


44-72×class="stub"5
12

=44-30,
=14.

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