2015 袋鼠数学 B-Ecolier 真题 答案 详解
2015-04-02 mathkangaroo mathkangaroo B-Ecolier
| 序号 | 文件列表 | 说明 | ||
|---|---|---|---|---|
| 1 | 2015-B-Ecolier-paper-eng.pdf | 8 页 | 464.99KB | 英文真题 |
| 2 | 2015-B-Ecolier-paper-eng-zh.pdf | 9 页 | 1.16MB | 中英双语真题 |
| 3 | 2015-B-Ecolier-key.pdf | 1 页 | 30.02KB | 真题答案 |
英文真题
KSF 2015 - selected problems Ecolier
3 point problems
1.
2 → 0 → + 1 → × 5 → ?
(A) 6 (B) 7 (C) 8 (D) 10 (E) 15
- Eric had 10 equal metal strips.
He has screwed pairs of them together into five long strips.
Which strip is the longest?
(A) A (B) B (C) C (D) D (E) E
-
Which number is hidden behind the square?
-
4 = 7
-
▲ = 9
(A) 2 (B) 3 (C) 4 (D) 5 (E) 6
中英双语真题
Kangaroo Math Competition 2015 (Malaysia) - Ecolier
3 points
1.
2 → 0 → +1 → ×5 → ?
(A) 6 (B) 7 (C) 8 (D) 10 (E) 15
2. Eric had 10 equal metal strips. He has screwed pairs of them together into five long strips. Which strip is the longest?
Eric mempunyai 10 kepingan besi yang serupa. Dia menyambungkan kepingan tersebut secara berpasangan menjadi lima kepingan yang paling panjang. Kepingan manakah yang paling panjang?
(A) A (B) B (C) C (D) D (E) E
3. Which number is hidden behind the square?
Nomor apakah yang disembunyikan di sebalik segiempat sama tersebut?
请问正方形后隐藏着什么号码？
(A) 2 (B) 3 (C) 4 (D) 5 (E) 6
