Download presentation

Presentation is loading. Please wait.

Published byJake Joyce Modified over 3 years ago

1
Unit 2 Test Review

3
1. Solve: A. 13 B. 7 C. 5 ½ D. 10

4
Answer to #1 Which is B

5
2. Solve: (16 ÷ 4) + 4 (2 2 – 2) A. 16 B. 20 C. 12 D. 48

6
Answer to #2 (16 ÷ 4) + 4 (2 2 – 2) 4 + 4 (4 – 2) 4 + 4 2 4 + 8 12 Which is C

7
3. Solve: 6 7 – 3 4 + 1 A. 157 B. 28 C. 195 D. 31

8
Answer to #3: 6 7 – 3 4 + 1 42 – 12 + 1 30 + 1 31 Which is D

9
4. Which property is represented? 16 + 47 + 14 = 47 + 16 + 14 A. Commutative of addition B. Commutative of multiplication C. Associative of addition D. Associative of multiplication

10
Answer to #4: 16 + 47 + 14 = 47 + 16 + 14 This is commutative property of addition since the 16 and 47 moved. (order changed) Which is A

11
5. Which property is represented? (45 + 39) + 25 = (39 + 45 ) + 25 A. Commutative of addition B. Commutative of multiplication C. Associative of addition D. Associative of multiplication

12
Answer to #5: (45 + 39) + 25 = (39 + 45 ) + 25 This is commutative property of addition. It is not associative even though it has parentheses because the numbers moved not the grouping symbols. Which is A

13
6. Which property is represented? A. Commutative of addition B. Commutative of multiplication C. Associative of addition D. Associative of multiplication

14
Answer to #6: This is associative property of multiplication because the grouping symbols move but the order of the numbers stays the same. Which is D

15
7. Which property is represented? A. Commutative of addition B. Commutative of multiplication C. Associative of addition D. Associative of multiplication

16
Answer to #7 This is commutative property of addition because the order of the numbers changes but not the grouping symbols. Which is A

17
8. Combine Like Terms h 2 + 4h + 4h 2 – h + 4 + h 2 + 7h A. 6h 2 + 10h + 4 B. 16h 2 + 4 C. 6h 2 + 7h + 8 D. 5h 2 + 11h + 4

18
Answer to #8: h 2 + 4h + 4h 2 – h + 4 + h 2 + 7h h 2 + 4h 2 + h 2 + 4h – h + 7h + 4 6h 2 + 10h + 4 Which is A

19
9. Which one of these simplifies to 3x 2 + 3x – 6? A. 6x 2 + 3x + 6 – 3x 2 B. 6x 2 + x – 6 – 2x 2 + 2x - x 2 C. 6x 2 + 3x – 6 + 3x 2 D. 6x 2 – 3x – 6 – 3x 2

20
Answer to # 9: Problem: 3x 2 + 3x – 6 A. 6x 2 + 3x + 6 – 3x 2 = 3x 2 + 3x + 6 B. 6x 2 + x – 6 – 2x 2 + 2x – x 2 = 3x 2 + 3x - 6 C. 6x 2 + 3x – 6 + 3x 2 = 9x 2 + 3x - 6 D. 6x 2 – 3x – 6 – 3x 2 = 3x 2 - 3x – 6 The answer is B

21
10. Simplify: A. 74 B. 100 C. 64 D. 1324

22
Answer to #10: Which is C

23
11. Translate: three more than two times a number A. 2x + 3 B. 2(3+x) C. 2x – 3 D. 3 – 2x

24
Answer to #11: three more than two times a number More than means add Times means multiply So the answer is: 2x + 3 Which is A

25
12. Translate: five times the difference of six and a number A. 5(6 – x) B. 5x – 6 C. 5 (x – 6) D. 56 - x

26
Answer to #12: five times the difference of six and a number Times means multiply Difference means subtract So the answer is 5(6 – x). Which is A

27
13. Simplify: 3(2x + 2) + 4(3x + 2) A. 18x + 4 B. 5x + 14 C. 5x + 4 D. 18x + 14

28
Answer to # 13: 3(2x + 2) + 4(3x + 2) 3 2x + 3 2 + 4 3x + 4 2 6x + 6 + 12x + 8 6x + 12x + 6 + 8 18x + 14 Which is D

29
14. Simplify: 6(2x + 3y) + 2(x + y) A. 3x + 4y B. 34xy C. 14x + 20y D. 30x + 4y

30
Answer to # 14: 6(2x + 3y) + 2(x + y) 6 2x + 6 3y + 2 x + 2 y 12x + 18y + 2x + 2y 12x + 2x + 18y + 2y 14x + 20y Which is C

31
15. Simplify: 4(3x + 7) A. 40x B. 12x + 28 C. 12x + 7 D. 3x + 28

32
Answer to # 15: 4(3x + 7) 4 3x + 4 7 12x + 28 Which is B

33
16. Solve: 3x + 5 = 11 A. x = 6 B. x = 2 C. x = 5 1/3 D. x = 4

34
Answer to #16 3x + 5 = 11 -5 -5 3x = 6 3 3 X = 2 which is B

35
17. 2(3x + 4) = 32 A. X = 4 2/3 B. X = 6 ½ C. X = 4 D. X = 2

36
Answer to #17: 2(3x + 4) = 32 6x + 8 = 32 -8 -8 6x = 24 6 6 x = 4 which is C

37
19. A. h = 68 B. h = 53 C. h = 43 D. h = 28

38
Answer to #19: Which is A

39
20. solve: 4x – 4 = 12 A. x = 7 B. x = 2 C. x = 4 D. x = 3

40
Answer to #20: 4x – 4 = 12 +4 = +4 4x = 16 4 4 x = 4 Which is C

41
A used mountain bike costs $79.95. This is $120 less than the cost of a new one. Write an algebraic equation to find the cost of a new bike. How much is it? Let c be your variable.

42
C-120 = 79.95 The cost of a new bike is $120 + $79.95, which is $199.95.

43
In 2005, the largest bank in the world was UBS, Switzerland, with $1,533 billion in assets. This was $49 billion more than the largest bank in the U.S., Citigroup. Write and solve an equation to find Citigroups assets.

44
Let a = Citigroups assets a + 49 = 1,533 A = $1,484 billion

45
Rodney had 53 baseball cards. Then he started to buy cards each week. After 1 week, Rodney had 73 cards. After 2 weeks, he had 93 cards. After 3 weeks, he had 113 cards. Write and solve a linear equation that will show how many cards Rodney will have after 5 weeks.

46
Since this is a linear equation, we know that we must have an x and y variable. Let Y = how many cards Rodney has in total Let X = how many weeks of card buying Rodney has done Let 20 = how many cards he buys per week Let 53 = how many cards he started with Y = 20X + 53 Y = 20x5 + 53 Y = 153 cards

Similar presentations

Presentation is loading. Please wait....

OK

Addition and Subtraction Equations

Addition and Subtraction Equations

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on mammals and egg laying animals list Ppt on particles of matter attract each other Ppt on different types of dance forms of indian Ppt on dispersal of seeds by animals Ppt on ministry of corporate affairs india Ppt on national education policy 1986 super Ppt on x-ray tube Ppt on natural and artificial satellites wiki Ppt on economic order quantity model Ppt on nepal earthquake