怎样算简便就怎样算.49×15÷4518×58+42÷836×(23+16-34)-数学

题目简介

怎样算简便就怎样算.49×15÷4518×58+42÷836×(23+16-34)-数学

题目详情

怎样算简便就怎样算.
4
9
×
1
5
÷
4
5
1
8
×58+42÷836×(
2
3
+
1
6
-
3
4
题型:解答题难度:中档来源:不详

答案

(1)class="stub"4
9
×class="stub"1
5
÷class="stub"4
5

=class="stub"4
45
÷class="stub"4
5

=class="stub"1
9


(2)class="stub"1
8
×58+42÷8,
=class="stub"1
8
×58+42×class="stub"1
8

=(58+42)×class="stub"1
8

=100×class="stub"1
8

=12.5;

(3)36×(class="stub"2
3
+class="stub"1
6
-class="stub"3
4
),
=36×class="stub"2
3
+36×class="stub"1
6
-36×class="stub"3
4

=24+6-27,
=30-27,
=3.

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