灵活计算,(能简便计算的要用简便方法计算).2-815÷4936×(16+23)(45+23÷6)×5722.1-4.88-4.12.-数学

题目简介

灵活计算,(能简便计算的要用简便方法计算).2-815÷4936×(16+23)(45+23÷6)×5722.1-4.88-4.12.-数学

题目详情

灵活计算,(能简便计算的要用简便方法计算).
2-
8
15
÷
4
9

36×(
1
6
+
2
3

4
5
+
2
3
÷6)×
5
7

22.1-4.88-4.12.
题型:解答题难度:中档来源:不详

答案

(1)2-class="stub"8
15
÷class="stub"4
9

=2-class="stub"6
5

=class="stub"4
5


(2)36×(class="stub"1
6
+class="stub"2
3
),
=36×class="stub"1
6
+class="stub"2
3
×36,
=6+24,
=30;

(3)(class="stub"4
5
+class="stub"2
3
÷6)×class="stub"5
7

=(class="stub"4
5
+class="stub"1
9
)×class="stub"5
7

=class="stub"4
5
×class="stub"5
7
+class="stub"1
9
×class="stub"5
7

=class="stub"4
7
+class="stub"5
63

=class="stub"41
63


(4)22.1-4.88-4.12,
=22.1-(4.88+4.12),
=22.1-9,
=13.1.

更多内容推荐