计算下面各题.15×4÷45314+314×13425×38÷425×3838-0.3×5668×(1517-934)[1-(14+38)]÷14.-数学

题目简介

计算下面各题.15×4÷45314+314×13425×38÷425×3838-0.3×5668×(1517-934)[1-(14+38)]÷14.-数学

题目详情

计算下面各题.
1
5
×4÷
4
5
3
14
+
3
14
×13
4
25
×
3
8
÷
4
25
×
3
8
3
8
-0.3×
5
6
68×(
15
17
-
9
34
[1-(
1
4
+
3
8
)]÷
1
4
题型:解答题难度:中档来源:不详

答案

(1)class="stub"1
5
×4÷class="stub"4
5

=class="stub"1
5
×4×class="stub"5
4

=1;

(2)class="stub"3
14
+class="stub"3
14
×13,
=class="stub"3
14
×(13+1),
=class="stub"3
14
×14,
=3;

(3)class="stub"4
25
×class="stub"3
8
÷class="stub"4
25
×class="stub"3
8

=class="stub"4
25
×class="stub"3
8
×class="stub"25
4
×class="stub"3
8

=class="stub"9
64


(4)class="stub"3
8
-0.3×class="stub"5
6

=class="stub"3
8
-class="stub"3
10
×class="stub"5
6

=class="stub"3
8
-class="stub"1
4

=class="stub"1
8


(5)68×(class="stub"15
17
-class="stub"9
34
),
=68×class="stub"15
17
-68×class="stub"9
34

=60-18,
=42;

(6)[1-(class="stub"1
4
+class="stub"3
8
)]÷class="stub"1
4

=[1-class="stub"5
8
class="stub"1
4

=class="stub"3
8
×4,
=class="stub"3
2

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