用你喜欢的方法脱式计算.45-310+152425+415-815-41545-23+(35-13)45-(320+310)+34.-数学

题目简介

用你喜欢的方法脱式计算.45-310+152425+415-815-41545-23+(35-13)45-(320+310)+34.-数学

题目详情

用你喜欢的方法脱式计算.
4
5
-
3
10
+
1
5

24
25
+
4
15
-
8
15
-
4
15

4
5
-
2
3
+(
3
5
-
1
3
)    
4
5
-(
3
20
+
3
10
)+
3
4
题型:解答题难度:中档来源:不详

答案

(1)class="stub"4
5
-class="stub"3
10
+class="stub"1
5

=class="stub"4
5
+class="stub"1
5
-class="stub"3
10

=1-class="stub"3
10

=class="stub"7
10


(2)class="stub"24
25
+class="stub"4
15
-class="stub"8
15
-class="stub"4
15

=class="stub"24
25
-class="stub"8
15
+(class="stub"4
15
-class="stub"4
15
),
=class="stub"72
75
-class="stub"40
75
+0,
=class="stub"32
75


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

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


(4)class="stub"4
5
-(class="stub"3
20
+class="stub"3
10
)+class="stub"3
4

=class="stub"4
5
-(class="stub"3
20
+class="stub"6
20
+class="stub"3
4

=class="stub"4
5
-class="stub"9
20
+class="stub"3
4

=class="stub"16
20
-class="stub"9
20
+class="stub"15
20

=class="stub"11
10

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