细心计算噢.238×5-623103×6+6827+171-25+15-数学

题目简介

细心计算噢.238×5-623103×6+6827+171-25+15-数学

题目详情

细心计算噢.
238×5-623
103×6+68
2
7
+
1
7
1-
2
5
+
1
5
题型:解答题难度:中档来源:不详

答案

(1)238×5-623
=1190-623
=567;

(2)103×6+68
=618+68
=686;

(3)class="stub"2
7
+class="stub"1
7

=class="stub"2+1
7

=class="stub"3
7


(4)1-class="stub"2
5
+class="stub"1
5

=class="stub"3
5
+class="stub"1
5

=class="stub"4
5

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