问题 解答题
用递等式计算.(你认为怎样简便就怎样算)
95.4×83+19×95
2
5
-95.4×25
13
29
-
8
11
-
2
11
-
1
11
+
16
29

24×(
1
12
+
3
8
-
1
6
)1110÷[56×(
3
7
-
3
8
)].
答案

(1)95.4×83+19×95

2
5
-95.4×2

=95.4×83+19×95.4-95.4×2,

=(83+19-2)×95.4,

=100×95.4,

=9540;

(2)5

13
29
-
8
11
-
2
11
-
1
11
+
16
29

=(5

13
29
+
16
29
)-(
8
11
+
2
11
+
1
11
),

=6-1,

=5;

(3)24×(

1
12
+
3
8
-
1
6

=24×

1
12
+24×
3
8
-24×
1
6

=2+9-4,

=7;

(4)1110÷[56×(

3
7
-
3
8
)]

=1110÷[56×

3
7
-56×
3
8
],

=1110÷3,

=370.

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