(1)9750÷25+75(2)(2.32+1.8)×6.5(3)101×7.8(4)58×815+34÷14(5)13÷[34-(118+512)].-数学

题目简介

(1)9750÷25+75(2)(2.32+1.8)×6.5(3)101×7.8(4)58×815+34÷14(5)13÷[34-(118+512)].-数学

题目详情

(1)9750÷25+75(2)(2.32+1.8)×6.5(3)101×7.8
(4)
5
8
×
8
15
+
3
4
÷
1
4
(5)
1
3
÷
[
3
4
-(
1
18
+
5
12
)].
题型:解答题难度:中档来源:不详

答案

(1)9750÷25+75,
=390+75,
=465;

(2)(2.32+1.8)×6.5,
=4.12×6.5,
=26.78;

(3)101×7.8,
=(100+1)×7.8,
=100×7.8+1×7.8,
=780+7.8,
=787.8;

(4)class="stub"5
8
×class="stub"8
15
+class="stub"3
4
÷class="stub"1
4

=class="stub"1
3
+3,
=3class="stub"1
3


(5)class="stub"1
3
÷
[class="stub"3
4
-(class="stub"1
18
+class="stub"5
12
)],
=class="stub"1
3
÷
[class="stub"3
4
-class="stub"17
36
],
=class="stub"1
3
÷class="stub"5
18

=class="stub"6
5

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