①625×80-2520÷24②(6+10.88÷3.2)×1.5③19×1013+813÷9④[(65-12)÷14]×43.-数学

题目简介

①625×80-2520÷24②(6+10.88÷3.2)×1.5③19×1013+813÷9④[(65-12)÷14]×43.-数学

题目详情

①625×80-2520÷24②(6+10.88÷3.2)×1.5
1
9
×
10
13
+
8
13
÷9
④[(
6
5
-
1
2
)÷14]×
4
3
题型:解答题难度:中档来源:不详

答案

①625×80-2520÷24,
=50000-105,
=49895;

②(6+10.88÷3.2)×1.5,
=(6+3.4)×1.5,
=9.4×1.5,
=14.1;

class="stub"1
9
×class="stub"10
13
+class="stub"8
13
÷
9,
=class="stub"1
9
×class="stub"10
13
+class="stub"8
13
×class="stub"1
9

=(class="stub"10
13
+class="stub"8
13
)×class="stub"1
9

=class="stub"18
13
×class="stub"1
9

=class="stub"2
13


④[(class="stub"6
5
-class="stub"1
2
)÷14]×class="stub"4
3

=[(class="stub"12
10
-class="stub"5
10
)×class="stub"1
14
class="stub"4
3

=[class="stub"7
10
×class="stub"1
14
class="stub"4
3

=class="stub"1
20
×class="stub"4
3

=class="stub"1
15

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