[(1225-0.28)×513+1÷(34+13)]×11920.-数学

题目简介

[(1225-0.28)×513+1÷(34+13)]×11920.-数学

题目详情

[(1
2
25
-0.28)×
5
13
+1÷(
3
4
+
1
3
)]×1
19
20
题型:解答题难度:中档来源:不详

答案

[(1class="stub"2
25
-0.28)×class="stub"5
13
+1÷(class="stub"3
4
+class="stub"1
3
)]×1class="stub"19
20

=[(1class="stub"2
25
+class="stub"7
25
)×class="stub"5
13
+1÷class="stub"13
12
]×1class="stub"19
20

=[class="stub"34
25
×class="stub"5
13
+class="stub"12
13
class="stub"39
20

=class="stub"34
25
×class="stub"5
13
×class="stub"39
20
+class="stub"12
13
×class="stub"39
20

=class="stub"51
50
+class="stub"9
5

=class="stub"141
50

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