简便运算.6×58+6.4÷85-58[56-(34-12)]×98.-六年级数学

题目简介

简便运算.6×58+6.4÷85-58[56-(34-12)]×98.-六年级数学

题目详情

简便运算.
5
8
+6.4÷
8
5
-
5
8

[
5
6
-(
3
4
-
1
2
)]×
9
8
题型:解答题难度:中档来源:不详

答案

(1)6×class="stub"5
8
+6.4÷class="stub"8
5
-class="stub"5
8

=6×class="stub"5
8
+6.4×class="stub"5
8
-class="stub"5
8

=(6+6.4-1)×class="stub"5
8

=11.4×class="stub"5
8

=class="stub"57
5
×class="stub"5
8

=7class="stub"1
8


(2)[class="stub"5
6
-(class="stub"3
4
-class="stub"1
2
)]×class="stub"9
8

=[class="stub"5
6
-class="stub"1
4
class="stub"9
8

=class="stub"7
12
×class="stub"9
8

=class="stub"21
32

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