1.) Which of the following numbers does not belong to the list:

12, 17, 22, 27, 32

2.) What should be subtracted from 3 to get 13/5?

3.) The sum of the digits of a 2-digit number is 13. When the digits are reversed, the new number is 27 less than the original number. What is the original number?

4.) The exterior of an open box is to be covered with gift wrapper. If the dimensions of the box are 5 by 8 by 12, and 5 is its height, what is the least gift wrap needed?

5.) The side lengths of the triangle are 4 cm, 4cm, and 5cm. Which angles are equal in measure?

6.) Find the next number in the list below.

2, 1, 4/5, 5/7,…

7.) A goat is tethered at the corner of a barn using a 3m rope. What is the area of the ground that the goat can graze?

8.) What is the lateral surface area of a cube whose side length is 8.05 cm?

9.) The diagonal of a rectangle is 13 cm. Which of the following is not its possible length?

a.) 5

b.) 6

c.) 12.5

d.) 14

10.) A certain bacteria double every day. If it started with 500 bacteria on the first day, how many bacteria will there be at the end of the 10^{th} day?

11.) What is the sum of all integers from 1 up to 50?

12.) What is the largest 3-digit prime number?

Answers

- 17, it’s a prime number
- 2/5
- 85
- 368
- A and C
- 2/3 (reduced form of 6/9). Pattern is (n + 1)/(2n – 1)
- 259.21 sq. cm.
- 14, the side of a rectangle is always less than its diagonal
- 256,000
- 1275
- 997