怎样简便怎样算:(25+45)÷154÷[(59-427)×311]910÷[47×(34-25)]1327×59+1427÷9525×7241017×[(23+34)÷512].-六年级数学

题目简介

怎样简便怎样算:(25+45)÷154÷[(59-427)×311]910÷[47×(34-25)]1327×59+1427÷9525×7241017×[(23+34)÷512].-六年级数学

题目详情

怎样简便怎样算:
(25+
4
5
)÷
1
5
4÷[(
5
9
-
4
27
)×
3
11
]
9
10
÷[
4
7
×(
3
4
-
2
5
)]
13
27
×
5
9
+
14
27
÷
9
5
25×
7
24
10
17
×[(
2
3
+
3
4
)÷
5
12
].
题型:解答题难度:中档来源:不详

答案

(1)(25+class="stub"4
5
)÷class="stub"1
5

=(25+class="stub"4
5
)×5
=25×5+class="stub"4
5
×5
=125+4
=129;

(2)4÷[(class="stub"5
9
-class="stub"4
27
)×class="stub"3
11
]
=4÷[class="stub"11
27
×class="stub"3
11
]
=4÷class="stub"1
9

=4×9
=36;

(3)class="stub"9
10
÷[class="stub"4
7
×(class="stub"3
4
-class="stub"2
5
)]
=class="stub"9
10
÷[class="stub"4
7
×class="stub"7
20
]
=class="stub"9
10
÷class="stub"1
5

=class="stub"9
10
×5
=class="stub"9
2


(4)class="stub"13
27
×class="stub"5
9
+class="stub"14
27
÷class="stub"9
5

=class="stub"13
27
×class="stub"5
9
+class="stub"14
27
×class="stub"5
9

=(class="stub"13
27
+class="stub"14
27
)×class="stub"5
9

=1×class="stub"5
9

=class="stub"5
9


(5)25×class="stub"7
24

=(24+1)×class="stub"7
24

=24×class="stub"7
24
+class="stub"7
24

=7+class="stub"7
24

=7class="stub"7
24


(6)class="stub"10
17
×[(class="stub"2
3
+class="stub"3
4
)÷class="stub"5
12
]
=class="stub"10
17
×[class="stub"17
12
×class="stub"12
5
]
=class="stub"10
17
×class="stub"17
5

=2.

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