脱式计算.步步为“赢”,胜利一定属于你!35×140-2987(27+15)×3557÷(23-15)0.34×5+0.96÷32(56-18)÷512920÷[12×(25+45)].-数学

题目简介

脱式计算.步步为“赢”,胜利一定属于你!35×140-2987(27+15)×3557÷(23-15)0.34×5+0.96÷32(56-18)÷512920÷[12×(25+45)].-数学

题目详情

脱式计算.步步为“赢”,胜利一定属于你!
35×140-2987
2
7
+
1
5
)×35
5
7
÷(
2
3
-
1
5
0.34×5+0.96÷32
5
6
-
1
8
)÷
5
12
9
20
÷[
1
2
×(
2
5
+
4
5
)].
题型:解答题难度:中档来源:江岸区

答案


(1)35×140-2987,
=4900-2987,
=1913;

(2)(class="stub"2
7
+class="stub"1
5
)×35,
=class="stub"2
7
×35+class="stub"1
5
×35,
=10+7,
=17;

(3)class="stub"5
7
÷(class="stub"2
3
-class="stub"1
5
),
=class="stub"5
7
÷class="stub"7
15

=class="stub"75
49


(4)0.34×5+0.96÷32,
=1.7+0.03,
=1.73;

(5)(class="stub"5
6
-class="stub"1
8
)÷class="stub"5
12

=class="stub"17
24
÷class="stub"5
12

=class="stub"17
10


(6)class="stub"9
20
÷[class="stub"1
2
×(class="stub"2
5
+class="stub"4
5
)],
=class="stub"9
20
÷[class="stub"1
2
×class="stub"6
5
],
=class="stub"9
20
÷class="stub"3
5

=class="stub"3
4

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