Mathematics 8th Grade CRCT

1. Mathematics 8th Grade CRCT Created by: Bonnie Bohannon Sources: Holt CRCT Prep WB and GA GPS Coach Edition WB

2. Day 1 Jessica has 3 hats, 2 gloves, and 4 scarves at home. How many different combinations of hats, gloves, and scarves can she wear to school? A. 6 B. 9 C. 12 D. 24

3. Day 2 • What is the value of (33)2? • 243 b. 729 • c. 6561 d. 19,683

4. Day 3 If two dice are rolled, how many different outcomes are possible? • 6 B. 12 C. 36 D. 144

5. Day 4 What are all the square roots of 81? • 1 and 81 b. -1 and 81 c. 9 and -9 d. 3 and 27

6. Day 5 What is the positive square root of 16? • 8 B. -4 C. 4 D. -16

7. Day 6 A set of cards includes 15 green cards, 10 blue cards, and 10 orange cards. What is the probability that a card randomly chosen will be orange? • 1/10 b. 1/15 c. 2/7 d. 5/7

8. Day 7 What is 9.46 x 107 in standard form? • 0.0000000946 • 0.000000946 • 9,460,000,000 • 94,600,000

9. Day 8 One micrometer is equal to 0.00003937 inch. What is 0.00003937 in scientific notation? • 3.937 x 10-5 • 3.937 x 10-4 • 3.937 x 104 • 3.937 x 105

10. Day 9 Matt rolls 2 number cubes, each with faces numbered 1-6. What is the probability that one cube will show a number less than 3 AND the other will show a number greater than 3? • 1/6 b. 2/6 c. 3/6 d. 5/6

11. Day 10 Simplify 3-3 • -27 b. 27 c. -1/27 d. 1/27

12. Day 11 Which number is both a rational number and an integer? • 6.2 B. 8/9 C. 45.05 D. 23

13. Day 12 What is the best whole number estimate of ? • 6 b. 7 c. 10 d. 20

14. Day 13

15. Day 14 Mrs. Davis has a square garden with an area of 144 square feet. What is the length of the side of the garden? • 2 feet b. 12 feet c. 6 feet d. 24 feet

16. Day 15 Which number is not rational? • 4 b. 2.6789….. c. 1/8 d. 3.6

17. Day 16

18. Day 17

19. Day 18

20. Day 19

21. Day 20 Jason wants to buy a video game that costs $54, including tax. He already has $36 saved. He can save $9 per week. How many weeks will he have to save to have enough money to buy the video game? • 2 b. 3 c. 4 d. 6

22. Day 21

23. Day 22 Solve: -9x + 8 > 80 • x > 8 b. x < 8 c. x > -8 d. x < -8

24. Day 23 Set A = {m, a, t, h} and Set B = {t, h, e, o, r, y}

25. Day 24 Which relation is a function? • {(1,3), (2,2), (3,3), (3,4)} • {(1,3), (1,2), (3,3), (4,4)} • {(1,3), (2,2), (2,3), (3,4)} • {(1,3), (2,2), (3,3), (4,4)}

26. Day 25 What is the missing term in the input/output table? • -85 b. -58 c. -38 d. -2

27. Day 26 What would the graph look like for the solution to 4x – 5 > 7? • Closed circle at 3 and shaded to the right • Open circle at 3 and shaded to the right • Open circle at 3 and shaded to the left • Closed circle at 3 and shaded to the left

28. Day 27 Set A = {a, b, c} Set B = {d, e, f} Set C={d, e, c, a, f} Which of the following statements is true? • I only b. I and II • c. III and IV d. II and III

29. Day 28 Which table of values is not a function?

30. Day 29 Sam wants to run more than 20 miles this week. He has already run 14 miles. There are 2 days left in the week. If Sam runs the same number of miles on those two days, how many miles must he run each day to meet his goal? Write a mathematical sentence for this problem. • 2m – 14 = 20 b. 2m – 14 > 20 c. 2m + 14 > 20 d. 2m + 14 < 20

31. Day 30 The length, l, of a diagonal is the square root of the sum of 25 and 16. Which expression represents l?

32. Day 31 Find the 20th term in the arithmetic sequence: 4, 11, 18, 25, … • 60 b. 53 c. 140 d. 137

33. Day 32 What is the slope of a line that passes through (-3,1) and (2,3)? • -5/2 b. -2/5 c. 2/5 d. 5/2

34. Day 33 What is the equation of the linear function given by this pattern? 6, 10, 14, 18, 22, … • y = 4x – 2 b. y = 4x + 2 c. y = -4x – 2 d. y = -4x + 2

35. Day 34 What is the y-intercept of this line? • ½ • 1 • 2 • -3

36. Day 35 What is the slope of the graph of the linear function given by this pattern? 7, 3, -1, -5, -9, … • -4 b. 4 c. 7 d. 10

37. Day 36 • What is the equation of the line in slope-intercept form? • y = x + 3 • y = x + 2 • y = -x + 3 • y = -x + 2

38. Day 37 Change y = 2x – 8 to standard form. • 2x - y = 8 • -2x – y = 8 • 2x + y = -8 • 2x + y = 8

39. Day 38 • What is the inequality for the graph? • y > -x + 2 • y < -x + 2 • y < x + 2 • y > x + 2

40. 16 cm. 12 cm. Day 39 • The following triangle is a right triangle. Find the length of the missing side. • 4 cm • 14 cm • 20 cm • 28 cm

41. 1 2 Day 40 What type of angles are 1 and 2? • Alternate interior angles • Alternate exterior angles • Corresponding angles • Supplementary angles

42. 1 2 Day 41 The m<1= 2x + 10 and the m<2 = 4x - 22. Find the measure of angle 1. • 16 • 42 • 5.3 • 138

43. Day 42 A rectangular park measures 30 meters by 40 meters. How long will a diagonal path from one corner of the park to the other corner measure? Hint: draw a picture. • 10 m b. 26.5 m c. 50 m d. 70 m

44. 1 2 5 6 Day 43 Name a pair of alternate exterior angles. • 1 and 4 • 3 and 6 • 1 and 5 • 1 and 8 3 4 7 8

45. J L K M O N Day 44 If triangle JKL is congruent to triangle MNO, which statement is NOT true? • <K is congruent to <N • Side ON is congruent to JL • <J is congruent to <M • Side MN is congruent to side JK

46. Day 45 Solve the equation below. 3x + 5(x – 1) = 11 • x = 0.75 B. x = 1.25 C. x = 1.5 D. x = 2

47. a 10 8 b x 12 c Day 46 Lines a, b, and c are parallel. Find the length of the segment labeled (x). • 12 b. 15 c. 18 d. 21

48. Day 47 A square garden has an area of 144 square feet. What is the length of one side of the garden? • 2 ft b. 24 ft c. 4 ft d. 12 ft

49. Day 48 Use the order of operations to simplify: • 12 • 24 • 96 • 212

50. Day 49 A line has a slope of 4. What is the slope of a line that is parallel to this line? • ¼ b. -1/4 c. -4 d. 4