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用递等式计算.(能简算的要简算)(手)(33×手96-303)÷38(3)手3手6×06+06×3手6(3)(06-49)×(9.30+07)(4)(40

题目详情
用递等式计算.(能简算的要简算)
(手)(33×手96-303)÷38
(3)
手3
手6
×
0
6
+
0
6
×
3
手6

(3) (
0
6
-
4
9
)×(9.30+
0
7
)
(4) (
4
0
+
4
3
7
-
3
49

(0) 4
3
+0.370+0
3
3
+3
0
8

(6) 7.8÷[33×(手-
0
8
)+3.6) .
▼优质解答
答案和解析

(得)(7它×得06-75它)÷78,
=(779它-75它)÷78,
=70a0÷78,
=80;

(它)
得7
得6
×
5
6
+
5
6
×
7
得6

=(
得7
得6
+
7
得6
)×
5
6

=得×
5
6

=
5
6


(7) (
5
6
-
a
9
)×(0.它5+
5
7
) ,
=
7
得8
×
它7
它8

=
7
8


(a) (
a
5
+
a
7
7
-
7
a0

=
它得
它0
×
7
7
-
7
a0

=
9
它0
-
7
a0

=
7
8


(5) a
7
+5.775+5
7
+它
5
8

=(a
7
+5
7
)+(5.775+它
5
8
),
=得0+8,
=得8;

(6) 7.8÷[7它×(得-
5
8
)+7.6) ,
=7.8÷[7它×
7
8
+7.6],
=7.8÷[得它+7.6],
=7.8÷得5.6,
=0.5.