怎样简便就怎样计算:910×78÷(45+14)5-78-0.125(14-14×12)÷1456+98×59×899×56+56÷1979×(1÷78+87÷1)3450×47-47×95099×9

题目简介

怎样简便就怎样计算:910×78÷(45+14)5-78-0.125(14-14×12)÷1456+98×59×899×56+56÷1979×(1÷78+87÷1)3450×47-47×95099×9

题目详情

怎样简便就怎样计算:
9
10
×
7
8
÷(
4
5
+
1
4
5-
7
8
-0.125
1
4
-
1
4
×
1
2
)÷
1
4
5
6
+
9
8
×
5
9
×
8
9
5
6
+
5
6
÷
1
9
7
9
×(1÷
7
8
+
8
7
÷1)
34
50
×
4
7
-
4
7
×
9
50
99×
99
100
题型:解答题难度:中档来源:不详

答案


(1)class="stub"9
10
×class="stub"7
8
÷(class="stub"4
5
+class="stub"1
4
),
=class="stub"63
80
÷class="stub"21
20

=class="stub"3
4


(2)5-class="stub"7
8
-0.125,
=5-(class="stub"7
8
+0.125),
=5-1,
=4;

(3)(class="stub"1
4
-class="stub"1
4
×class="stub"1
2
)÷class="stub"1
4

=(class="stub"1
4
-class="stub"1
4
×class="stub"1
2
)×4,
=class="stub"1
4
×4-class="stub"1
4
×class="stub"1
2
×4,
=1-class="stub"1
2

=class="stub"1
2


(4)class="stub"5
6
+class="stub"9
8
×class="stub"5
9
×class="stub"8
9

=class="stub"5
6
+class="stub"9
8
×class="stub"8
9
×class="stub"5
9

=class="stub"5
6
+class="stub"5
9

=class="stub"25
18


(5)9×class="stub"5
6
+class="stub"5
6
÷class="stub"1
9

=9×class="stub"5
6
+class="stub"5
6
×9,
=9×(class="stub"5
6
+class="stub"5
6
),
=9×class="stub"5
3

=15;

(6)class="stub"7
9
×(1÷class="stub"7
8
+class="stub"8
7
÷1),
=class="stub"7
9
×(class="stub"8
7
+class="stub"8
7
),
=class="stub"7
9
×class="stub"16
7

=class="stub"16
9


(7)class="stub"34
50
×class="stub"4
7
-class="stub"4
7
×class="stub"9
50

=(class="stub"34
50
-class="stub"9
50
class="stub"4
7

=class="stub"1
2
×class="stub"4
7

=class="stub"2
7


(8)99×class="stub"99
100

=(100-1)×class="stub"99
100

=100×class="stub"99
100
-1×class="stub"99
100

=99-class="stub"99
100

=98class="stub"1
100

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