( )1. “20% off” in Chinese means “________”.
A. 打两折
B. 打八折
C. 优惠20元
D. 优惠80元
A. 打两折
B. 打八折
C. 优惠20元
D. 优惠80元
答案
B
( )2. Which is the missing part? XOOOXXOOOXXX ________.
A. XOO
B. OO
C. OOO
D. OOOO
A. XOO
B. OO
C. OOO
D. OOOO
答案
B
( )3. What is the next number in the following: 1 2 3 5 8 13 ________?
A. 17
B. 18
C. 19
D. 21
A. 17
B. 18
C. 19
D. 21
答案
D
( )4. Grandma gives John some money for his birthday. John spends all of it in five shops. In each shop, he spends 1.00 more than half of what he has when he comes in. How much money does he get from Grandma?
A. 25.
B. 30.
C. 46.
D. 62.
A. 25.
B. 30.
C. 46.
D. 62.
答案
D
( )5. Steve buys some apples at the cost of 0.60 each and some oranges at the cost of 0.50 each. If he pays 4.10 for a total of 8 apples and oranges, how many apples does Steve buy?
A. 1.
B. 2.
C. 3.
D. 5.
A. 1.
B. 2.
C. 3.
D. 5.
答案
A
( )6. How many triangles(三角形) are there in the picture?

A. 14.
B. 15.
C. 16.
D. 17.
A. 14.
B. 15.
C. 16.
D. 17.
答案
C
1. Each letter represents(代表) a number. Write down the numbers.
A B C D
+ D A C B
__________
4 9 8 7
A=__________ B=__________ C=__________ D=__________
2. It’s a simple sum(简单的算术题). Can you work out which number is represented(代表) by every letter?
A N S W E R
× R
__________
9 9 9 9 9 9
A=__________ N=__________ S=__________
W=__________ E=__________ R=__________
A B C D
+ D A C B
__________
4 9 8 7
A=__________ B=__________ C=__________ D=__________
2. It’s a simple sum(简单的算术题). Can you work out which number is represented(代表) by every letter?
A N S W E R
× R
__________
9 9 9 9 9 9
A=__________ N=__________ S=__________
W=__________ E=__________ R=__________
答案
1. A=3 B=6 C=4 D=1
2. A=1 N=4 S=2 W=8
E=5 R=7
1. 本题题干是:每个字母代表一个数字,写出这些数字。
观察算式可以发现2C=8,C=4。假设A为x,D是4 - x,B=9 - x,列算式:(4 - x)+(9 - x)=7,x=3,所以A=3 B=6 C=4 D=1。
2. 本题题干是:这是一个简单的算术题,你能算出每一个字母代表的数字吗?
观察算式可以发现R×R=49,R=7。逆向思维,999999÷7=142857,所以A=1 N=4 S=2 W=8 E=5 R=7。
2. A=1 N=4 S=2 W=8
E=5 R=7
1. 本题题干是:每个字母代表一个数字,写出这些数字。
观察算式可以发现2C=8,C=4。假设A为x,D是4 - x,B=9 - x,列算式:(4 - x)+(9 - x)=7,x=3,所以A=3 B=6 C=4 D=1。
2. 本题题干是:这是一个简单的算术题,你能算出每一个字母代表的数字吗?
观察算式可以发现R×R=49,R=7。逆向思维,999999÷7=142857,所以A=1 N=4 S=2 W=8 E=5 R=7。