计算下面各题.8470-104×657.12×4-1.12÷0.2572×(59-512)+10(16+19-112)×31-16÷512179×[(38+0.25)÷(56-59)].-数学

题目简介

计算下面各题.8470-104×657.12×4-1.12÷0.2572×(59-512)+10(16+19-112)×31-16÷512179×[(38+0.25)÷(56-59)].-数学

题目详情

计算下面各题.
8470-104×65
7.12×4-1.12÷0.25
72×(
5
9
-
5
12
)
+10
1
6
+
1
9
-
1
12
)×3
1-
1
6
÷
5
12

1
7
9
×[(
3
8
+0.25)÷(
5
6
-
5
9
)].
题型:解答题难度:中档来源:不详

答案

(1)8470-104×65,
=8470-6760,
=1710;

(2)7.12×4-1.12÷0.25,
=28.48-4.48,
=24;

(3)72×(class="stub"5
9
-class="stub"5
12
)
+10,
=72×class="stub"5
9
-72×class="stub"5
12
+10,
=40-30+10,
=20;

(4)(class="stub"1
6
+class="stub"1
9
-class="stub"1
12
)×3,
=class="stub"1
6
×3+class="stub"1
9
×3-class="stub"1
12
×3,
=class="stub"1
2
+class="stub"1
3
-class="stub"1
4

=class="stub"6
12
+class="stub"4
12
-class="stub"3
12

=class="stub"7
12

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

=1-class="stub"2
5

=class="stub"3
5


(6)1class="stub"7
9
×[(class="stub"3
8
+0.25)÷(class="stub"5
6
-class="stub"5
9
)],
=1class="stub"7
9
×[(class="stub"3
8
+0.25)÷(class="stub"5
6
-class="stub"5
9
)],
=1class="stub"7
9
×[class="stub"5
8
÷class="stub"5
18
],
=1class="stub"7
9
×class="stub"9
4

=4.

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