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用递等式计算.(能简单的,要用简便算)(1)600-480÷12(2)6.7-1.75+1.8(3)1-815×1516(4)9×715-415÷19(5)(80-9.8)×0.6-2.12(6)(1-511)×(112+38)(7)145×[(21
题目详情
用递等式计算.(能简单的,要用简便算)
(1)600-480÷12
(2)6.7-1.75+1.8
(3)1-
×
(4)9×
-
÷
(5)(80-9.8)×0.6-2.12
(6)(1-
)×(
+
)
(7)1
×[(2
+4.6-2
)÷2.4].
×
(4)9×
-
÷
(5)(80-9.8)×0.6-2.12
(6)(1-
)×(
+
)
(7)1
×[(2
+4.6-2
)÷2.4].
8 8 15 15
(4)9×
-
÷
(5)(80-9.8)×0.6-2.12
(6)(1-
)×(
+
)
(7)1
×[(2
+4.6-2
)÷2.4].
15 15 16 16
-
÷
(5)(80-9.8)×0.6-2.12
(6)(1-
)×(
+
)
(7)1
×[(2
+4.6-2
)÷2.4].
7 7 15 15
÷
(5)(80-9.8)×0.6-2.12
(6)(1-
)×(
+
)
(7)1
×[(2
+4.6-2
)÷2.4].
4 4 15 15
(5)(80-9.8)×0.6-2.12
(6)(1-
)×(
+
)
(7)1
×[(2
+4.6-2
)÷2.4].
1 1 9 9
)×(
+
)
(7)1
×[(2
+4.6-2
)÷2.4].
5 5 11 11
+
)
(7)1
×[(2
+4.6-2
)÷2.4].
1 1 12 12
)
(7)1
×[(2
+4.6-2
)÷2.4].
3 3 8 8
×[(2
+4.6-2
)÷2.4].
4 4 5 5
+4.6-2
)÷2.4].
1 1 3 3
)÷2.4].
1 1 5 5
(1)600-480÷12
(2)6.7-1.75+1.8
(3)1-
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(4)9×
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(5)(80-9.8)×0.6-2.12
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(7)1
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(4)9×
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(5)(80-9.8)×0.6-2.12
(6)(1-
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(4)9×
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(5)(80-9.8)×0.6-2.12
(6)(1-
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(7)1
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(5)(80-9.8)×0.6-2.12
(6)(1-
| 5 |
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(7)1
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(5)(80-9.8)×0.6-2.12
(6)(1-
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(7)1
| 4 |
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(5)(80-9.8)×0.6-2.12
(6)(1-
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(7)1
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(7)1
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(7)1
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(7)1
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▼优质解答
答案和解析
(1)600-480÷12=600-40=560;(2)6.7-1.75+1.8=4.95+1.8=6.75;(3)1-815×1516=1-12=12;(4)9×715-415÷19=9×715-415×9=9×(715-415)=9×15=95;(5)(80-9.8)×0.6-2.12=70.2×0.6-2.12=42.12-2.12=4...
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