简算下面各题:(1)59×199-59(2)24×(.-六年级数学

题目简介

简算下面各题:(1)59×199-59(2)24×(.-六年级数学

题目详情

简算下面各题:
(1)
5
9
×199-
5
9

(2)24×(
题型:解答题难度:中档来源:不详

答案

(1)class="stub"5
9
×199-class="stub"5
9

=class="stub"5
9
×(199-1),
=class="stub"5
9
×198,
=110;

(2)24×(
=24×class="stub"3
4
+24×class="stub"5
6
-24×class="stub"1
32

=18+20-class="stub"3
4

=38-class="stub"3
4

=37class="stub"1
4

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