1117×379513×14+34×5131047×144229-712×51312×138×1433214×(189+223)-数学

题目简介

1117×379513×14+34×5131047×144229-712×51312×138×1433214×(189+223)-数学

题目详情

1
1
17
×3
7
9
5
13
×
1
4
+
3
4
×
5
13
10
4
7
×14
42
2
9
-7
1
2
×5
1
3
12×1
3
8
×
14
33
2
1
4
×(1
8
9
+2
2
3
题型:解答题难度:中档来源:不详

答案

(1)1class="stub"1
17
×3class="stub"7
9
=4;

(2)class="stub"5
13
×class="stub"1
4
+class="stub"3
4
×class="stub"5
13

=(class="stub"1
4
+class="stub"3
4
)×class="stub"5
13

=1×class="stub"5
13

=class="stub"5
13


(3)10class="stub"4
7
×14=148;

(4)42class="stub"2
9
-7class="stub"1
2
×5class="stub"1
3

=42class="stub"2
9
-40,
=2class="stub"2
9


(5)12×1class="stub"3
8
×class="stub"14
33

=12×(1class="stub"3
8
×class="stub"14
33
),
=12×class="stub"7
6

=14;

(6)2class="stub"1
4
×(1class="stub"8
9
+2class="stub"2
3
),
=2class="stub"1
4
×1class="stub"8
9
+2class="stub"1
4
×
2class="stub"2
3

=class="stub"17
4
+class="stub"24
4

=10class="stub"1
4

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