113-13×116-16=1×1=1______.-数学

题目简介

113-13×116-16=1×1=1______.-数学

题目详情

1
1
3
-
1
3
×1
1
6
-
1
6
=1×1=1
______.
题型:解答题难度:中档来源:不详

答案

根据分数四则混合运算的顺序,本题中应先算乘后算减,
1class="stub"1
3
-class="stub"1
3
×1class="stub"1
6
-class="stub"1
6

=class="stub"4
3
-class="stub"1
3
×class="stub"7
6
-class="stub"1
6

=class="stub"4
3
-class="stub"7
18
-class="stub"1
6

=class="stub"4
3
-(class="stub"7
18
+class="stub"1
6
),
=class="stub"4
3
-class="stub"5
9

=class="stub"7
9

所以上面的做法是错误的.
故答案为:×.

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