怎样算简便就怎样算.[(1419-513)+519-813]÷111234×(117+113)×13[1-(12-14)]×231375+450÷18×25.-数学

题目简介

怎样算简便就怎样算.[(1419-513)+519-813]÷111234×(117+113)×13[1-(12-14)]×231375+450÷18×25.-数学

题目详情

怎样算简便就怎样算.
[(
14
19
-
5
13
)+
5
19
-
8
13
11
12

34×(
1
17
+
1
13
)×13
[1-(
1
2
-
1
4
)]×
2
3

1375+450÷18×25.
题型:解答题难度:中档来源:不详

答案

(1)[(class="stub"14
19
-class="stub"5
13
)+class="stub"5
19
-class="stub"8
13
class="stub"11
12

=[class="stub"14
19
-class="stub"5
13
+class="stub"5
19
-class="stub"8
13
class="stub"11
12

=[class="stub"14
19
+class="stub"5
19
-(class="stub"5
13
+class="stub"8
13
)]÷class="stub"11
12

=[1-1]÷class="stub"11
12

=0;

(2)34×(class="stub"1
17
+class="stub"1
13
)×13,
=34×class="stub"1
17
×13+34×class="stub"1
13
×13,
=26+34,
=60;

(3)[1-(class="stub"1
2
-class="stub"1
4
)]×class="stub"2
3

=[1-class="stub"1
4
class="stub"2
3

=class="stub"3
4
×class="stub"2
3

=class="stub"1
2


(4)1375+450÷18×25,
=1375+25×25,
=1375+625,
=2000.

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