Name:_____________________ 7th Math Mid-Term Review Packet 1 Chapter 1 Write an integer to represent the following phrase. 1. $10 earned ______________ 2. 3° below 0 ______________ 3. a loss of 5 yards ______________ 4. a gain of 7 yards ______________ Write the opposite of each integer. 5. _________ 6. _________ 7. _________ 8. _________ Write the integer for each. 9. _________ 10. _________ 11. _________ 12. _________ Due Date:____________ Graph the following numbers on the number line. 13. 0 Compare. Write <, =, or >. 14. -7 _____ 2 15. -|-7| _____ -(-7) 16. -5 _____ -9 Order from least to greatest. 17. __________________________________ 18. __________________________________ Evaluate. 19. _____________ 20. _____________ 21. _____________ 22. _____________ 23. _____________ 24. _____________ 25. _____________ 26. _____________ 27. _____________ 28. _____________ 29. _____________ 30. _____________ 31. _____________ Give an example of each property. 32. Commutative property of addition _____________________ 33. Associative property of multiplication _____________________ 34. Zero property of multiplication _____________________ 35. Inverse property of addition _____________________ 36. Commutative property of multiplication _____________________ 37. Identity property of multiplication _____________________ 38. Distributive property over addition _____________________ 39. Identity property of addition _____________________ 40. Associative property of addition _____________________ 41. Distributive property over subtraction _____________________ Tell whether each set is closed under the given operation. If the set is not closed provide a counterexample. 42. Set: odd whole numbers Operation: addition _____________________ 43. Set: positive integers Operation: subtraction _____________________ 44. Set: whole numbers Operation: multiplication _____________________ Write each in simplest exponential form. 45. ______________ 46. ______________ 47. ______________ 48. ______________ 49. ______________ Evaluate. Follow the correct order of operations. 50. ______________ 51. ______________ 52. ______________ 53. ______________ Write the coordinates of each point and tell which quadrant each one is in. A B C D 54. A __________________ _____________________ 55. B __________________ _____________________ 56. C __________________ _____________________ 57. D __________________ _____________________ Graph and connect the points. 58. 59. 60. 61. 62. 63. Chapter 2 Write each as a numerical or algebraic expression. 59. the sum of 1.5 and 3 ____________________ 60. a number decreased by 3.5 ____________________ 61. 8 increased by -8 ____________________ 62. 10 divided by twice a number ____________________ Simplify by combining like terms 63. ____________________ 64. ____________________ 65. ____________________ Evaluate each expression when a=3, b=-2, and c=5. 66. ____________________ 67. ____________________ 68. ____________________ Write and equation for each and label them as numeric or algebraic. 69. six less than the absolute value of a number is equal to twelve ____________________ 70. four times negative five is equal to negative twenty ____________________ Solve and check. 71. ____________________ 72. ____________________ 73. ____________________ 74. ____________________ 75. ____________________ 76. ____________________ 77. ____________________ 78. ____________________ 79. ____________________ 80. ____________________ Solve for the missing values. Use the volume, perimeter, and area formulas. V=lwh P=2(l+w) A=lw 81. Find V when l = 6 ft., w = 3 ft., and h = 9 ft. _________________ 82. Find w when A = 117 in2, and l = 9 in. _________________ 83. Find l when P = 48 cm and w = 6 cm _________________