
J1C1--什么是数学?
Authored by 冠麟奥数比赛官方频道 OFFICIAL GUAN LIN QUIZIZZ
Mathematics
1st Grade
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8 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
3.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
数学不断发展演变,未来的数学可能会有哪些重大突破和变革?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
请解释质数和合数之间的区别。
6.
FILL IN THE BLANK QUESTION
2 mins • 5 pts
从数字1开始,按照以下规则前进:如果当前数字是质数,就向前跳到下一个质数;如果当前数字是合数,就向前跳到下一个合数。一直重复这个规则,直到你达到了第十步。你能找到第十步的数字是多少吗?
Answer explanation
让我们一步步来解答这个问题:
1. 我们从数字1开始。
2. 1 不是质数,因为质数必须大于1,所以我们向前跳到下一个合数。下一个合数是4。
3. 4 也不是质数,所以我们再次向前跳到下一个合数。下一个合数是6。
4. 6 同样不是质数,所以我们继续向前跳到下一个合数。下一个合数是8。
5. 8 仍然不是质数,所以我们再次向前跳到下一个合数。下一个合数是9。
6. 9 依然不是质数,所以我们再次向前跳到下一个合数。下一个合数是10。
7. 10 还不是质数,所以我们继续向前跳到下一个合数。下一个合数是12。
8. 12 依然不是质数,所以我们再次向前跳到下一个合数。下一个合数是14。
9. 14 也不是质数,所以我们继续向前跳到下一个合数。下一个合数是15。
10. 最后,我们到达第十步,也就是数字15。
所以,第十步的数字是 15。
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
以下是一个数字序列:2, 4, 8, 16, 32, 64, 128, ......
请找出这个数字序列的下一个数字是多少?
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