计算下面各题(要写出计算过程)(45+14)÷73+71023+8×(78-56)(45-23)×15229×35+49×35.-数学

题目简介

计算下面各题(要写出计算过程)(45+14)÷73+71023+8×(78-56)(45-23)×15229×35+49×35.-数学

题目详情

计算下面各题(要写出计算过程)
4
5
+
1
4
)÷
7
3
+
7
10
2
3
+8×(
7
8
-
5
6
4
5
-
2
3
)×
15
2
2
9
×
3
5
+
4
9
×
3
5
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"4
5
+class="stub"1
4
÷class="stub"7
3
+class="stub"7
10

=class="stub"21
20
÷class="stub"7
3
+class="stub"7
10

=class="stub"9
20
+class="stub"7
10

=1class="stub"3
20


(2)class="stub"2
3
+8×(class="stub"7
8
-class="stub"5
6
),
=class="stub"2
3
+8×class="stub"1
24

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

=1;

(3)(class="stub"4
5
-class="stub"2
3
)×class="stub"15
2

=class="stub"2
15
×class="stub"15
2

=1;

(4)class="stub"2
9
×class="stub"3
5
+class="stub"4
9
×class="stub"3
5

=class="stub"2
15
+class="stub"4
15

=class="stub"2
5

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