第九届五羊杯初中数学竞赛初一试题.pdf
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1997 90 100
5 50
11997 3 5
A532 B665 C133 D798
21
A14 B24 C32 D44
3
9/8 24/25
1 1 2 2
A66 B33 C66 D33
3 3 3 3
412
3456 1 6 2 5 3 4
A64 B48 C36 D18
51 8 3 2
2π
A7 B8 C9 D10
6 15 2 1
45 15
A40 B45 C50 D55
78
A17 B1 C2 D3
8
90
A36 B18 C20 D10
9x 3 +ax 2 +bx +5 x −17x +19ab=
A−23 B2−3 C−32 D3−2
10k r
t
r +t r r +k r −k
A B C D
r −t r −t r −t r +k
5 50
113ab98 11 9 _____
12ab 1176a b3 a _____
132A B
_____
1411944 2 29
_____
152 ×2 4 1×1
_____
1625_____
en R
17c r R r n n n 2n c
e
1 1
R +nr 2
c c / c _____
1 1
18537 4 4
_____%
19xy z xxx +yx +x ???
_____
2010
1 10
_____
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