奧數(shù)應(yīng)用題專(zhuān)題階梯練習(xí)題及答案——提高篇
答案:
31. 7.5
32. 500
33. 49.2
34. 37.5
35. 8
36. 75.
37. 4
38. 400
39. 25
40. 12
41. 6
42. 16
43. 60
44. 2
?
????
??? 46. 4月2日9時(shí)
47. 32
48. 41,80,85,164
49. 9
50. 1970
51. 88
52. 10
53. 6
54. 90
55. 32
56. 8
57. 37
58. 6
59. 25
60. 20
61. 17
62. 蜘蛛4只,蟬8只,蜻蜓6只
63.70
64.3
65.15
66.11
67.20
68.106
69.170
70.36
71.? 2
72.? 9
73.? 35
74.? 54
75.? 45
76.? 39
77.? 200
78.? 93
????
??? 80.? 10
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- 小升初網(wǎng)
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