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(2009•宝安区)用递等式计算.(你认为怎样简便就怎样算)95.4×83+19×9525-95.4×251329-811-211-111+162924×(112+38-16)1110÷[56×(37-38)].
题目详情
(2009•宝安区)用递等式计算.(你认为怎样简便就怎样算)
95.4×83+19×95
-95.4×2 5
-
-
-
+
24×(
+
-
) 1110÷[56×(
-
)].
95.4×83+19×95
2 |
5 |
13 |
29 |
8 |
11 |
2 |
11 |
1 |
11 |
16 |
29 |
24×(
1 |
12 |
3 |
8 |
1 |
6 |
3 |
7 |
3 |
8 |
▼优质解答
答案和解析
(1)95.4×83+19×95
-95.4×2
=95.4×83+19×95.4-95.4×2,
=(83+19-2)×95.4,
=100×95.4,
=9540;
(2)5
-
-
-
+
=(5
+
)-(
+
+
),
=6-1,
=5;
(3)24×(
+
-
)
=24×
+24×
-24×
,
=2+9-4,
=7;
(4)1110÷[56×(
-
)]
=1110÷[56×
-56×
],
=1110÷3,
=370.
2 |
5 |
=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 |
3 |
8 |
1 |
6 |
=2+9-4,
=7;
(4)1110÷[56×(
3 |
7 |
3 |
8 |
=1110÷[56×
3 |
7 |
3 |
8 |
=1110÷3,
=370.
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