用递等式计算,能简算的要简算.36×(14+16+19)57÷5+5÷574.75×47+4.75÷7334÷78÷5141118×24×922(49+215)÷815.-六年级数学

题目简介

用递等式计算,能简算的要简算.36×(14+16+19)57÷5+5÷574.75×47+4.75÷7334÷78÷5141118×24×922(49+215)÷815.-六年级数学

题目详情

用递等式计算,能简算的要简算.
36×(
1
4
+
1
6
+
1
9

5
7
÷5+5÷
5
7

4.75×
4
7
+4.75÷
7
3

3
4
÷
7
8
÷
5
14

11
18
×24×
9
22

4
9
+
2
15
)÷
8
15
题型:解答题难度:中档来源:不详

答案

36×(class="stub"1
4
+class="stub"1
6
+class="stub"1
9
),
=36×class="stub"1
4
+36×class="stub"1
6
+36×class="stub"1
9

=9+6+4,
=19;

class="stub"5
7
÷5+5÷class="stub"5
7

=class="stub"1
7
+7,
=7class="stub"1
7


4.75×class="stub"4
7
+4.75÷class="stub"7
3

=4.75×class="stub"4
7
+4.75×class="stub"3
7

=4.75×(class="stub"4
7
+class="stub"3
7
),
=4.75×1,
=4.75;

class="stub"3
4
÷class="stub"7
8
÷class="stub"5
14

=class="stub"3
4
×class="stub"8
7
×class="stub"14
5

=class="stub"12
5


class="stub"11
18
×24×class="stub"9
22
=6;

class="stub"4
9
+class="stub"2
15
)÷class="stub"8
15

=class="stub"26
45
×class="stub"15
8

=class="stub"13
12

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