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MTH011B |Math Foundations II | Unit 1 Graded Assignment| Operations and Real Numbers Name: Date: Graded Assignment Unit 1 Assignment Answer each unit review question. When you are done, give your assignment to your teacher according to his or her directions. Solve the following problems: (1 point) 1. Write the opposite of this integer. + 245 Score Answer: (1 point) 2. Find the absolute value. 7 3 Score Answer: (1 point) 3. 2 6 Score 4 2 Score Answer: (1 point) 4. Answer: (1 point) 5. -13 + (-17) = Score (-5 + 3) + (-12) = Score Answer: (1 point) 6. Answer: © 2012 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. Page 1 of 7 MTH011B |Math Foundations II | Unit 1 Graded Assignment| Operations and Real Numbers (1 point) -29 − (-5) = 7. Score Answer: (1 point) 8. 18 − (-4) = Answer: Score (1 point) 9. On Saturday, Kelly borrowed $15 from her sister. The next day, she paid back $4. On Tuesday, she borrowed $9 more. How much money does Kelly now owe her sister? Score Answer: (1 point) 10. (8)(-2)(-3) = Score 10515 Score 4 16 4 Score Solve for z. -3z + 8 = -1 Score Answer: (1 point) 11. Answer: (1 point) 12. Answer: (1 point) 13. Answer: (1 point) 14. The water level in a tank decreased 8 inches in 4 minutes. The tank drains at a steady rate. What is the change in the water level each minute? Score Answer: © 2012 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. Page 2 of 7 MTH011B |Math Foundations II | Unit 1 Graded Assignment| Operations and Real Numbers (1 point) 15. What type of number is the result of multiplying a negative number by a negative number? Score Answer: (1 point) 16. Kaylie had $1250 in her savings account. She withdrew $82 each month for 8 months in order to pay for a summer vacation. How much did Kaylie have in her account at the end of the 8 months? Score Answer: (1 point) 17. Solve for x. 3x + 2 = y; y = 2 Score Solve for y. y = 2x + (-2); x = -3 Score Answer: (1 point) 18. Answer: (1 point) 19. The point at which the x-axis and the y-axis intersect on a coordinate graph is called the point of origin. Score true false Answer: (1 point) 20. Round 365,986.091 to the nearest whole number. Score Answer: (1 point) 21. The astronomy club plans to wash cars to raise money for a new telescope. With tax, the telescope costs $327.19. Estimate how many cars will have to be washed to cover the entire cost of the telescope if the club charges $5.00 per car © 2012 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. Score Page 3 of 7 MTH011B |Math Foundations II | Unit 1 Graded Assignment| Operations and Real Numbers Answer: (1 point) 22. Todd rounded 1.73629 to the nearest thousandth. He wrote 1.736. Was he correct? Score Answer: (1 point) (20 − 12)6 23. − 5(5 − 3) = Score Answer: (1 point) 24. 2(24 + 9) + 2(15 − 8) = Score Which property is illustrated by (6.3x)y = 6.3(xy) ? Score Answer: (1 point) 25. commutative property of multiplication associative property of multiplication multiplicative identity Answer: (1 point) 26. Which property is illustrated by (7.3 + 5.1) + x = 7.3 + (5.1 + x) ? Score additive property commutative property of addition associative property of addition Answer: (1 point) 2 4 24 5 5 ? What property is illustrated by 5 27. Score commutative property of multiplication associative property of multiplication distributive property Answer: © 2012 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. Page 4 of 7 MTH011B |Math Foundations II | Unit 1 Graded Assignment| Operations and Real Numbers (1 point) 28. A rectangular prism has a length x + 2, width 2, height 4, and volume 24. What is the length? Score Answer: (1 point) 29. Anna has $50.00 in the bank. She adds $5.00 in the first week, $10.00 in the second week, and $15.00 in the third week. At this rate, how much money will she have in the bank at the end of 6 weeks? Score Answer: (1 point) 30. The Burns have 2 children. The sum of their ages is 23 and the product is 132. How old are the children? Score Answer: (1 point) 31. If you start with a number, add 5, then multiply by 7, the result is 133. What was the original number? Score Answer: (1 point) 32. Dusty produces 22 items in 15 minutes. Alan produces 18 items in 12 minutes. Which worker is more productive? Score Answer: (1 point) 33. Choose the answer that displays this decimal in lowest fraction form of 8.05. 8 1 2 8 1 4 8 1 20 © 2012 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. Score Page 5 of 7 MTH011B |Math Foundations II | Unit 1 Graded Assignment| Operations and Real Numbers Answer: (1 point) a Evaluate this expression. Choose the answer in lowest terms. b 34. a = 16 and b = 32 Score 1 8 4 8 1 2 Answer: (1 point) 35. Evaluate this expression. 2 a 3 b a = -3 and b = 2 Score Answer: (1 point) 36. The Wilson family took 3 hours and 45 minutes to travel from their home to their cousins' home for Thanksgiving. Which answer correctly shows their travel time as a fraction in simplest form? 3 3 5 hours 3 2 3 hours 3 3 hours 4 Score Answer: © 2012 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. Page 6 of 7 MTH011B |Math Foundations II | Unit 1 Graded Assignment| Operations and Real Numbers (1 point) 37. 5 3 8 12 Score 2 3 Score Answer: (1 point) 38. 53 Answer: (1 point) 39. 2 x x= 3 6 Score 5 3 8 4 Score Answer: (1 point) 40. Answer: Your Score © 2012 K12 Inc. All rights reserved. Copying or distributing without K12’s written consent is prohibited. ___ of 40 Page 7 of 7