计算:(1)13+141-35×712=(2)0.5-18÷512615-434=(3)525-12338+512×710=(4)1-215÷317114+25=(5)(18-1637)×2.82.7

题目简介

计算:(1)13+141-35×712=(2)0.5-18÷512615-434=(3)525-12338+512×710=(4)1-215÷317114+25=(5)(18-1637)×2.82.7

题目详情

计算:
(1)
1
3
+
1
4
1-
3
5
×
7
12
=
(2)
0.5-
1
8
÷
5
12
6
1
5
-4
3
4
=
(3)
5
2
5
-1
2
3
3
8
+
5
12
×
7
10
=
(4)
1-2
1
5
÷3
1
7
1
1
4
+
2
5
=
(5)
(18-16
3
7
)×2.8
2.75+1
5
6
=
(6)
1÷0.35
(
1
3
+
1
4
)×1
3
7
=
题型:解答题难度:中档来源:不详

答案

(1)
class="stub"1
3
+class="stub"1
4
1-class="stub"3
5
×class="stub"7
12

=
class="stub"7
12
1-class="stub"7
20

=
class="stub"7
12
class="stub"13
20

=class="stub"7
12
×class="stub"20
13

=class="stub"35
39


(2)
0.5-class="stub"1
8
÷class="stub"5
12
6class="stub"1
5
-4class="stub"3
4

=
class="stub"1
2
-class="stub"1
8
×class="stub"12
5
6class="stub"4
20
-4class="stub"15
20

=
class="stub"1
2
-class="stub"3
10
class="stub"29
20

=
(class="stub"1
2
-class="stub"3
10
)×20
class="stub"29
20
×20

=class="stub"4
29


(3)
5class="stub"2
5
-1class="stub"2
3
class="stub"3
8
+class="stub"5
12
×class="stub"7
10

=
5class="stub"6
15
-1class="stub"10
15
class="stub"3
8
+class="stub"7
24

=
class="stub"56
15
class="stub"2
3

=class="stub"56
15
×class="stub"3
2

=class="stub"28
5


(4)
1-2class="stub"1
5
÷3class="stub"1
7
1class="stub"1
4
+class="stub"2
5

=
1-class="stub"11
5
×class="stub"7
22
1class="stub"5
20
+class="stub"8
20

=
1-class="stub"7
10
class="stub"33
20

=class="stub"3
10
×class="stub"20
33

=class="stub"2
11


(5)
(18-16class="stub"3
7
)×2.8
2.75+1class="stub"5
6

=
(18-class="stub"115
7
)×2.8
2class="stub"3
4
+1class="stub"5
6

=class="stub"50.4-46
class="stub"55
12

=4.4×class="stub"12
55

=0.96.

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