Question

小学英语奥赛的试题为什么没有

Answer 1

小升初英文奥数试题
1、Did you know? In the decimal number system (base 10) ten different digits, 0 to 9, are used to write all the numbers. In the binary number system (base 2) two different digits are used, i.e. 0 and 1. Which one of the following numbers is not a valid number in the octal number system (base 8)? A) 128 B) 127 C) 126 D) 125 E) 124

2、The number of diagonals that can be drawn in a regular polygon with twenty sides (icosagon) is_____.

3、If a and b are integers, 10Ä3=1,150Ä7=3, and then 379Ä6 is equal to_____.

4、Two numbers are in the ratio 2 : 3. When 4 is added to each number the ratio changes to 5 : 7.The sum of the two original numbers is____.

5、The greatest number of Mondays which can occur in 45 consecutive days is____.

6、Saul plays a video game in which he scores 4 for a hit and lost 6 for a miss. After 20 rounds his score is 30. The number of times he has missed is____.

7、Three girls A, B and C run in a 100 m race. When A finishes, B is 10 m behind A and when B finishes C is 20 m behind B. How far in metres was C from A when A finished? (Let’s assume all the athletes run at a constant speed)

8、The areas of the faces of a rectangulabox are 84 cm2, 70 cm2 and 30 cm2.The volume of the box in cm3 is____.

9、You have 3 weights: 1 kg, 3 kg and 9 kg as well as an equal arm balance, as shown. How many different weight objects can you weigh with these three?

参考答案：
1、A 考察我们学过的简单的进制问题，显然8进制中没有8出现
2、170 找规律，公式为n×(n-3)÷2
3、1 定义新运算，就是求379÷6的余数。
4、40，16和24
5、7
6、5
7、28米，根据距离比求出速度比，三者的速度比为1：9/10：18/25
8、420 分解质因数
9、13种

Answer 2

基本是是骗人的 家长看到自己的宝宝学习成绩好 自然就会给钱学校了 奥赛也 很累的 小朋友需要吗？真的是 学英语也要学的开心啊 这样才能学得更好啊

Answer 3

你说错了，孩子的累是为将来的出人头地做准备的。如果现在的孩子放了学除了只会上网玩游戏，那将来牢房里会有他的位置了，换句话说，也就是你把孩子送进去的。现在孩子累了，只是在培养孩子的责任心。