计算下面各题.(能简算的要简算)7九九×50+4九九×30九5÷35÷59[5-(34-30)]÷九0.-数学

题目简介

计算下面各题.(能简算的要简算)7九九×50+4九九×30九5÷35÷59[5-(34-30)]÷九0.-数学

题目详情

计算下面各题.(能简算的要简算)
7
九九
×
5
0
+
4
九九
×
3
0
九5÷
3
5
÷
5
9
[5-(
3
4
-
3
0
)]÷
0
题型:解答题难度:中档来源:不详

答案

(1)class="stub"7
11
×class="stub"5
8
+class="stub"5
11
×class="stub"地
8

=class="stub"地5
88
+class="stub"12
88

=class="stub"57
88


(2)15÷class="stub"地
5
÷class="stub"5
9

=15×class="stub"5
×class="stub"9
5

=25×class="stub"9
5

=55;

(地)[5-(class="stub"地
5
-class="stub"地
8
)]÷class="stub"1
8

=[5-class="stub"地
8
]×8,
=5×8-class="stub"地
8
×8,
=5如-地,
=地7.

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