灵活计算,(能简便计算的要用简便方法计算).36×(29+712)8×(36×125)34-710×57+12〔1-(23-12)〕÷512.-数学

题目简介

灵活计算,(能简便计算的要用简便方法计算).36×(29+712)8×(36×125)34-710×57+12〔1-(23-12)〕÷512.-数学

题目详情

灵活计算,(能简便计算的要用简便方法计算).
36×(
2
9
+
7
12

8×(36×125)
3
4
-
7
10
×
5
7
+
1
2

〔1-(
2
3
-
1
2
)〕÷
5
12
题型:解答题难度:中档来源:不详

答案

(1)36×(class="stub"2
9
+class="stub"7
12

=36×class="stub"2
9
+36×class="stub"7
12

=8+21,
=29;

(2)8×(36×125)
=8×125×36,
=1000×36,
=36000;
(3)class="stub"3
4
-class="stub"7
10
×class="stub"5
7
+class="stub"1
2

=class="stub"3
4
-class="stub"1
2
+class="stub"1
2

=class="stub"3
4

〔1-(class="stub"2
3
-class="stub"1
2
)〕÷class="stub"5
12

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

=class="stub"5
6
÷class="stub"5
12

=2.

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