计算下面各题24×(38+34)(45-12×45)÷23(251+518)×9×17316÷910×453-1÷(57+67×13)1.75×67+314×74+74.-数学

题目简介

计算下面各题24×(38+34)(45-12×45)÷23(251+518)×9×17316÷910×453-1÷(57+67×13)1.75×67+314×74+74.-数学

题目详情

计算下面各题
24×(
3
8
+
3
4
)
(
4
5
-
1
2
×
4
5
2
3
(
2
51
+
5
18
)×9×17
3
16
÷
9
10
×
4
5
3-1÷(
5
7
+
6
7
×
1
3
)
1.75×
6
7
+
3
14
×
7
4
+
7
4
题型:解答题难度:中档来源:不详

答案


①24×(class="stub"3
8
+class="stub"3
4
),
=24×class="stub"3
8
+24×class="stub"3
4

=9+18,
=27;

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

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

=class="stub"2
5
×class="stub"3
2

=class="stub"3
5



③(class="stub"2
51
+class="stub"5
18
)×9×17,
=class="stub"2
51
×9×17+class="stub"5
18
×9×17,
=6+class="stub"85
2

=class="stub"97
2


class="stub"3
16
÷class="stub"9
10
×class="stub"4
5

=class="stub"3
16
×class="stub"10
9
×class="stub"4
5

=class="stub"1
6


⑤3-1÷(class="stub"5
7
+class="stub"6
7
×class="stub"1
3
),
=3-1÷1,
=2;

⑥1.75×class="stub"6
7
+class="stub"3
14
×class="stub"7
4
+class="stub"7
4

=class="stub"7
4
×class="stub"6
7
+class="stub"3
14
×class="stub"7
4
+class="stub"7
4

=class="stub"7
4
×(class="stub"6
7
+class="stub"3
14
+1),
=class="stub"7
4
×class="stub"29
14

=class="stub"29
8

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