Name: ______Period: ____
Math 702 Unit 1 Test Review Sheet
Directions: Show all of your work to solve the problems below. Remember the sign rules!1. / + / 2. / 19 –
3. / -4 – (-16) / 4. / -12 – (8)
5. / -10 + 31 / 6. / 17 + (-16)
7. / -17 + 9 + (-2) / 8. / -30 – 25 – 3 + 8
9. / -4 x 6 / 10. / -52 (-13)
11. / -96 12 / 12. / -9(-8)
13. / (-7)(-4)(-3) / 14. /
Directions: Find the value of the following expressions if x = -10, y = 4, and z = 7. Show all work.
15. / x – y + z / 16. /
Directions: Use the order of operations to solve the problems. Show your work.
17. / -33 – 6(-2) – 2 / 18. / 23 – 6 ÷ (-3) x (-7) + 12
Directions: Solve the following problems. Show your work and label your answer.
19. / The upper atmosphere of Neptune can get as cold as -218oC. The inner core of the planet can be as hot as 7,100oC. What is the difference between the two temperature extremes?
20. / Over the past four months, Pleasant Town has seen a decrease in its population. The population data shows that in January, the population declined by 543 people. In February, there were 314 less people living there. In March, the population declined by 257 people, and in April, it went down by 368 people. What is the total decrease in population over the time period? Explain your answer.
21. / The average person loses 50 to 80 hairs per day to make way for new growth. Suppose you lose 65 hairs per day for 15 days without growing any. Write a multiplication expression to represent the situation. Then find the product and explain its meaning.
22. / An October newspaper headline read that the total value of stocks held by Japanese financial institutions dropped from $987 billion to $900 billion in 6 weeks. Write a division expression to find the average change in value per week. Then find the quotient and explain its meaning.