1. 1. Take out a blank piece of paper and a pencil and a calculator (optional). 2. Label your paper 1-15 down the left-hand side. 3. You have 60s to complete each question. 4. At the end of this exercise, you will be given the answers to the questions. Give yourself a mark out of 15.

2. Question 1. What is the number 64 in exponential form using a base of 2?

3. Question 2. A heart beats once every second. How many times does it beat in a year? Write you answer in scientific notation.

4. Question 3. A baker makes 3 2 dollars per hour and works 4 3 hours per week. How much money does he make every 2 weeks?

5. Question 4. The sun’s diameter is one million, three hundred and eighty-three thousand kilometers. What is this number in scientific notation?

6. Question 5. What is the Greatest Common Factor of 16, 24 and 36?

7. Question 6. Elijah runs a lap in 60 seconds. Tony runs a lap in 80 seconds. How many laps will they each have completed when they cross the finish line at the same time? Elijah: _____ Tony: _____

8. Question 7. What is the prime factorization of 72?

9. Question 8. A plumber works 40 hours a week and gets paid $35 an hour plus an extra 20 per house visit. If he visited 16 houses last week, how much money did the plumber make?

10. Question 9. 40 kg of black beads, 20 kg of silver beads and 12 kg of gold beads are to be packaged so that each bag has the same mass of beads. There can be no extra beads left over and the colors cannot be mixed. What is the largest common mass that can be used?

11. Question 10. 40 kg of black beads, 20 kg of silver beads and 12 kg of gold beads are to be packaged so that each bag has the same mass of beads. There can be no extra beads left over and the colors cannot be mixed. How many bags are needed?

12. Question 11. Which of the following pairs does not have 6 as their greatest common factor? a) 18, 24b) 6, 12 c) 12, 18d) 12, 24

13. Question 12. Jose had a 90 cm length board and a 150 cm board length both with the same width. He wanted to cut them into equal length pieces. If all of the two boards are used, what is the largest possible length for each piece?

14. Question 13. Three schools contain 184, 232, and 272 Grade 7 students. Each school needs to be divided into groups so that all groups contain the same number of Grade 7 students, and every student is in a group. What is the largest number less than 10 that can be in a group?

15. Question 14. During Winter Carnival, students signed up for a tug-of-war competition. 48 Grade 7 students 36 Grade 8 students 24 Grade 9 students signed up. Teams are made by grade level, and teams must have an equal number of members, and all students who signed up must participate. What is the greatest number of players on each team?

16. Question 15. One clock rings every 6 hours, a second clock rings every 8 hours and a third clock rings every 12 hours. If they all ring now, how long will it be before they all ring at the same time again?

17.  1. 2 6 9.4  2.3.1536 x 10 7 10.18  3.$115211.D  4.1.383 x 10 6 12.30cm  5.413.8  6.Elijah=4 Tony=314.12  7.2x2x2x3x315.24 hours  8.$1720