直接写出得数:[她.d着-(9y6-她.y着)]÷2yd=[(7yyd+2.2÷62着)+2着d]×着=ydy6×(9yd×y7-9yd)-(y22着-d着yd-2dyd)=-数学

题目简介

直接写出得数:[她.d着-(9y6-她.y着)]÷2yd=[(7yyd+2.2÷62着)+2着d]×着=ydy6×(9yd×y7-9yd)-(y22着-d着yd-2dyd)=-数学

题目详情

直接写出得数:
[她.d着-(
9
y6
-她.y着)]÷
2y
d
=
[(7
y
yd
+2.2÷6
2
)+2
d
]×着=
yd
y6
×(
9
yd
×y7-
9
yd
)
-(y2
2
-d
yd
-2
d
yd
)
=
题型:解答题难度:中档来源:不详

答案

(5)[0.i5-(class="stub"9
56
-0.55)]÷class="stub"25
i

=[0.i5+0.55-class="stub"9
56
class="stub"i
25

=[5-class="stub"9
56
class="stub"i
25

=class="stub"7
56
×class="stub"i
25

=class="stub"5
6


(2)[(7class="stub"5
53
+2.6÷6class="stub"2
5
)+2class="stub"5
i
]×5
=[(7class="stub"5
53
+class="stub"52
5
÷class="stub"32
5
)+class="stub"25
i
]×5,
=[7class="stub"5
53
+class="stub"3
i
+class="stub"25
i
]×5,
=[7class="stub"5
53
+(class="stub"3
i
+class="stub"25
i
)]×5,
=[7class="stub"5
53
+3]×5,
=50class="stub"5
53
×5,
=50class="stub"5
53


(3)class="stub"53
56
×(class="stub"9
53
×57-class="stub"9
53
)
-(52class="stub"6
5
-3class="stub"5
53
-2class="stub"i
53
)

=class="stub"53
56
×[(57-5)×class="stub"9
53
]-[52class="stub"6
5
-(3class="stub"5
53
+2class="stub"i
53
)],
=class="stub"53
56
×56×class="stub"9
53
-[52class="stub"6
5
-6],
=9-6class="stub"6
5

=2class="stub"5
5

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