怎样简便就怎样做.(67-34)÷128(9×56-7310)÷253-32×1021-2710÷59+16×4.-数学

题目简介

怎样简便就怎样做.(67-34)÷128(9×56-7310)÷253-32×1021-2710÷59+16×4.-数学

题目详情

怎样简便就怎样做.
6
7
-
3
4
)÷
1
28
(9×
5
6
-
73
10
)÷
2
5
3-
3
2
×
10
21
-
2
7
10÷
5
9
+
1
6
×4.
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"6
7
-class="stub"3
4
)÷class="stub"1
28

=(class="stub"6
7
-class="stub"3
4
)×28,
=class="stub"6
7
×28-class="stub"3
4
×28,
=24-21,
=3;

(2)(9×class="stub"5
6
-class="stub"73
10
)÷class="stub"2
5

=(class="stub"15
2
-class="stub"73
10
)÷class="stub"2
5

=class="stub"1
5
÷class="stub"2
5

=class="stub"1
2


(3)3-class="stub"3
2
×class="stub"10
21
-class="stub"2
7

=3-class="stub"5
7
-class="stub"2
7

=3-(class="stub"5
7
+class="stub"2
7
),
=3-1,
=2;

(4)10÷class="stub"5
9
+class="stub"1
6
×4,
=18+class="stub"2
3

=18class="stub"2
3

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