1. CONFIDENTIAL1 Good Afternoon! Today is our REVIEW of ADDING AND SUBTRACTING DECIMALS NUMBERS & ALGEBRAIC CONCEPTS

2. CONFIDENTIAL2 Divisibility 1. Which number divides evenly into 120, 240, and 360 with no remainder, but will not divide evenly into 160 and 320? 1. 2 2. 3 3. 4 4. 5

3. CONFIDENTIAL3 Divisibility 2. A number divides evenly into 27, 30, 33, and 36. Which of the following will the number also divide evenly into? 1. 47 2. 48 3. 49 4. 50

4. CONFIDENTIAL4 Divisibility 3. If all even numbers are divisible by 2, is it true that all odd numbers are divisible by 3? If so, explain your reasoning. If not, give a number for which this is not true.

5. CONFIDENTIAL5 Prime Factorization 4. Which of the following best describes the numbers 6, 15, 21, 28, and 32? 1. Composite 2. Even 3. Odd 4. Prime

6. CONFIDENTIAL6 Prime Factorization 5. Which figure represents a prime number? 1)2) 3)4)

7. CONFIDENTIAL7 Prime Factorization 6. Write 38 as a product of prime factors.

8. CONFIDENTIAL8 Powers & Exponents 7. How is 3 x 3 x 3 x 3 expressed using exponents? 1. 3 3 2. 4 3 3. 3 x 3 3 4. 3 4

9. CONFIDENTIAL9 Powers & Exponents 8. How is 4 6 written as a product?

10. CONFIDENTIAL10 Powers & Exponents 9. The length of one day on Venus is 3 5 Earth days. Express this exponent as a product. Then find the value of the product.

11. CONFIDENTIAL11 Order of Operations 10. Which operation should be done first in 20 – 3 x 6 ÷ 2 + 3

12. CONFIDENTIAL12 Order of Operations 11. Find the value of the expression: 96 ÷ 4 2 + (25 x 2) - 15 - 3

13. CONFIDENTIAL13 Order of Operations 12. What is the value of ten plus fifty divided by five times two minus 6?

14. CONFIDENTIAL14 Variables & Expressions 13. What is the value of (8 x r) – 4 if r= 4?

15. CONFIDENTIAL15 Variables & Expressions 14. What is the value of 4b ÷3, if b = 3?

16. CONFIDENTIAL16 Variables & Expressions 15. The table shows the results of a survey in which people were asked to name the place they use technology when away from home. Write an expression to represent the total number of people who participated in the survey? PlaceNumber of responses On vacation 57 While driving 57 Outdoors 42 Mall X Gym 17 Public restrooms 10

17. CONFIDENTIAL17 Problem Solving 16. True or False? If 14 + b = 86, then b = 78.

18. CONFIDENTIAL18 Problem Solving 17. The table shows the distance Trevor rode his bike each day for a week. At this rate, how many miles will he ride on Saturday? DayDistance (mi) Sunday2 Monday5 Tuesday8 Wednesday11 Thursday? Friday? Saturday?

19. CONFIDENTIAL19 Problem Solving 18. The table shows how much Kyle has earned in each of the last four weeks doing chores. 1. How much can he expect to earn the fifth week if this pattern continues? 2. Explain the pattern. WeekAmount ($) 12 23 35 49

20. CONFIDENTIAL20 Place Value 19. How is 2.6251 read?

21. CONFIDENTIAL21 Place Value 20. Which decimal number can replace P on the number line? P

22. CONFIDENTIAL22 Place Value 21. Write four and two hundred thirty-two thousandths in standard form and in expanded form.

23. CONFIDENTIAL23 Comparing & Ordering Decimals 22. Use >, <, or = to compare each pair of decimals. 1. 0.06 0.60 2. 4.8884.880 3. 2.032.030

24. CONFIDENTIAL24 Comparing & Ordering Decimals 23. Order each set of decimals from greatest to least. 1. 5.222, 5.202, 5.022, 5.2222 2. 0.001, 0.101, 0.0101, 0.011

25. CONFIDENTIAL25 Comparing & Ordering Decimals 24. Sasha checked her reaction time using a stopwatch. During which trial was Sasha’s reaction time the slowest? (Hint:The slowest time is the longest) Reaction Time (s) Trial 11.031 Trial 21.016 Trial 31.050 Trial 41.007

26. CONFIDENTIAL26 Rounding & Estimating Decimals 25. Round $67.37 to the nearest dollar.

27. CONFIDENTIAL27 Rounding & Estimating Decimals 26. Round each decimal to the indicated place- value position. 1. 45.0099; thousandths 2. 9.56303; ten-thousandths 3. 1,567.893; tens

28. CONFIDENTIAL28 Rounding & Estimating Decimals 27. Round each ceiling height in the table to the nearest tenth of a foot. RoomPorchLiving room Bedroom Ceiling Height (ft) 8.1212.358.59

29. CONFIDENTIAL29 Adding & Subtracting Decimals 28. Find the value of each expression 1. 2.3 + 6 x 2 2. 58.67 – 28.72 3. 0.796 + 13

30. CONFIDENTIAL30 Adding & Subtracting Decimals 29. Is 6.14, 6.2, or 1.74 the solution of x – 3.94 = 2.2?

31. CONFIDENTIAL31 Adding & Subtracting Decimals 30. Miranda rode her bike to the park and then to Dave’s house. By the end of the day, she had biked a total of about 13 kilometers. From Dave’s house, did Miranda bike back to the park, and then home? Explain? Miranda’s House Park Dave’s House 3.1km 4.7km 5.4km