怎样简便就怎样算.(5-513)×2657×14+34×5729×511×27×33(112+56)×2414+34×311943×34+53×1943-1943.-数学

题目简介

怎样简便就怎样算.(5-513)×2657×14+34×5729×511×27×33(112+56)×2414+34×311943×34+53×1943-1943.-数学

题目详情

怎样简便就怎样算.
(5-
5
13
)×26
5
7
×
1
4
+
3
4
×
5
7
2
9
×
5
11
×27×33
1
12
+
5
6
)×24
1
4
+
3
4
×
3
1
19
43
×34+53×
19
43
-
19
43
题型:解答题难度:中档来源:不详

答案

(1)(5-class="stub"5
13
)×26
=5×26-class="stub"5
13
×26
=130-10
=120;

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

=class="stub"5
7
×(class="stub"1
4
+class="stub"3
4

=class="stub"5
7
×1
=class="stub"5
7


(3)class="stub"2
9
×class="stub"5
11
×27×33
=(class="stub"2
9
×27)×(class="stub"5
11
×33)
=6×15
=90;

(4)(class="stub"1
12
+class="stub"5
6
)×24
=class="stub"1
12
×24+class="stub"5
6
×24
=2+20
=22;

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

=class="stub"1
4
+class="stub"9
4

=class="stub"5
2


(6)class="stub"19
43
×34+53×class="stub"19
43
-class="stub"19
43

=class="stub"19
43
×(34+53-1)
=class="stub"19
43
×86
=38.

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