Name: _____________________________ Algebra 1 Summer Packet 2015 1|Page Directions for Summer Packet: 1. Put your name on the packet! Do all work in PENCIL only! 2. Read each page carefully for all instructions and examples. 3. Following the examples given (or by how your last teacher showed you), complete each problem. Show any and all work necessary for each problem! Feel free to attach more paper is needed (write the page number on it) 4. Calculators may be used, but try to avoid them if possible. 5. Packets will be scored during the first week of school by your teacher. 6. Students should expect a quiz on the material in this packet, usually the first week of school. 7. Good luck and enjoy your summer! 2|Page Comparing Integers/Absolute Value Use <, >, or = to answer the following. 1) 8 3) -5 -8 -16 5) -12 -20 2) 0 -3 4) 4 4 6) -3 4 Put the integers in ascending order. 7) 4, 5, 2, 1 8) 2, 7, 10, 3 9) 14, 12, 17 , 5 10) 3, 4 , 2, 5 Absolute Value is the distance a number is from zero (always positive). For example 4 = 4; 5 5 1) 2 2) 8 3) 5 4) 12 5) 21 6) 83 7) 100 8) 142 9) 231 10) 250 3|Page Integer Operations Do NOT Use a calculator on pages 4-7 *REMEMBER… SAME SIGNS ADD AND KEEP THE SIGN OPPOSITE SIGNS SUBTRACT AND KEEP THE SIGN OF THE BIGGEST NUMBER. MINUS A NEGATIVE MAKE IT A BIG PLUS 1) (-12) + 7 2) (-10) + ( -7) 3) (-6) + 12 4) 8 + 7 5) 38 + (-5) 6) (-45) + 9 7) (-1) + (-46) 8) (-30) + 10 9) (-34) + 50 11) 13 + (-29) 11) 2 – (-2) 12) (-1) – 10 13) (-29)-29 14) (-8) – (-6) 15) 11 – 4 16) 48 – (-31) 17) 18 – 41 18) (-38) – 30 4|Page More Integer Practice 1) 8+(-18) 2) -7 + (-8) 3) 26 + 6 4) -24 + 0 5) -9 + (-3) 6) -7 + 22 7) (-10) + (-13) 8) 40 + (-6) 9) 10) 19 + (-2) + (-17) (-5) + 3 + (-17) 12) 4 – 10 13) -5 - 12 14) 3 – (-15) 15) 11 - 13 16) -7 – (-14) 17) 34- (-10) 18) -7 – (-7) 19) -7 - 7 20) (-10) – 47 + 12 - 3 21) (-29) – 29 + (-13) – 1 22) 13 + (-29) – (-5) + 2 23) 5|Page 38 + 22 – 14 + 3 Multiplying Integers Example: Multiplying two positive or two negative integers gives you a positive product. 8(7)=56 -6(-3)=18 1. 5(9) Example: Multiplying a negative and a positive integer gives you a negative product. -5(4)=-20 3(-4)=-12 2. -6(-7) 3. 7(3) 4. 5. 6(5) 6. -9(9) 7. 8(0) 8. 8(-9) 5(6) 9. -12(12) 10. -10(-46) 11. 8(-5) 12. -12(-8) 13. (-6)(-10)(-8) 14. (9)(10)(6) 15. 6 ∙ 6 ∙ -2 16. -12 ∙ 7 17. 11(-13) 18. (-7)8 6|Page Dividing Integers 1. Example: Dividing two positive or two negative integers gives you a positive quotient. -56 / -7=8 28 ÷ 7=4 20 (5) Example: Dividing a negative and a positive integer gives you a negative quotient. -21 ÷ 7= -3 36 ÷ (-9) =-4 2. 81 ÷ 9 3. -48 ÷ 8 4. 5. 0 ÷ (-12) 6. 42 ÷ (-6) 125 5 8. -96 / 12 7. 30 ÷ (-5) 9. -90 ÷ (-10) 10. -54 ÷ 3 11. -75 ÷ (-15) 12. 52 ÷ (-4) 13. 105 7 14. 4 1 15. 10 2 16. 60 15 17. 168 12 18. 7|Page 12 4 Fraction Review – ALWAYS REDUCE!! Reducing Fractions Example 1) 12 20 2) 7 21 3) 70 105 4) 27 33 5) 63 81 6) 88 121 7) 78 112 8) 14 56 9) 105 126 10) 16 32 11) 9 21 12) 13 52 Improper Fraction to Mixed Number Example 1) 25 6 9 16 8|Page 8) 6 7 11 230 35 3) 54 3 4) 338 10 5) 75 12 6) 80 16 Mixed Number to Improper Fraction Example 7) 2 2) 9) 8 9 30 Adding/Subtracting Fractions and Mixed Numbers Simplify. 1) 5 3 4 4 2) 3 1 2 2 3) 2 4 5 5 4) 1 1 3 3 5) 1 5 3 3 6) 7 5 6 6 7) 1 1 5 5 8) 9 3 10 10 9) 3 1 8 3 10) 11) 9 1 8 2 13) 9 3 10 5 9|Page 9 4 5 3 2 14) 2 5 15) 1 1 3 2 8 12) 3 6 1 1 7 7 4 3 16) 3 2 Multiplying/Dividing Fractions and Mixed Numbers 1) 5 1 4 3 2) 8 7 7 10 2 5 4) 3 4 1 3 5) 2 1 5 4 1 7 7) 5 4 8) 10) 9 2 5 10 | P a g e 3) 4 7 9 4 2 1 6) 2 4 3 10 1 5 2 4 9) 4 11) 2 3 5 12) 1 8 2 7 1 1 1 9 3 Order of Operations Use the acronym GEMDAS: G – Grouping symbols such as parentheses, brackets, set notation, and fraction bars E – Exponents M/D – Multiplication & division in order from left to right A/S – Addition & subtaction in order from left to right Simplify: 2) (2) 3 5 7 3) 15 3 5 4 4) 29 3 9 4 5) 20 7 5 6) 4 9 9 7 7) 50 (17 8) 8) (12 4) 8 3 9) 12 5 6 6 10) 18 42 7 11) 3(2 7) 9 7 12) 8 22 4 1) 6 4 23 11 | P a g e 13) 16 2 5 3 6 16) 32 16 (8 2) 14) 12 3 6 2 8 4 8 2 (3 9) 17) (8 2 3) 15) 10 (27 9) 47 18) 6 5 56 7 7 2 Evaluating Expressions Evaluate = plug in for the variable and simplify Example: given x = 2 and y = 4, evaluate 3x + y SOLUTION = 3(2) + (4) = 6 + 4 = 10 Evaluate each expression given that x = 5, y = -4, and z = 6 1) 3x - z 2) yz + 4 3) 2xy + z 4) 2(x + z) – y 5) 4y – 5z + 1 6) -2xyz + x 12 | P a g e MORE PRACTICE — Evaluate each expression given that a=2, b=3, c=6, and d=12. 1) (a d ) (b c ) Example 2) d a 3) b 2 4) c 2b a 5) 3a 2 d 6) cd ab 7) bc d 8) 3d a 2 b 10) 13) 9) a b c d 12) ab cd 14) 15) c a d 2 13 | P a g e 2 16) bc d a d a c 2a 3a a (a b c d )0 Combining Like Terms Example 1) 5y y 2) x 4x 3) 3a 2a 1 4) m m 2 5) 11x 3y 5x 6) 6y 3z 3y 7) 13a 13b 13c 15a 8) 6p 2p 18 9) 2 3 1 2 y x y x 5 5 5 5 10) 17a 18b 20b a 11) 5 3x 2x + 55 12) 27 + 3x 4x 6x + 4 13) 14 | P a g e 8(5b 7) 5b Addition & Subtraction Equations Example: 1) n 28 84 2) x 48 129 3) y 59 194 4) b 48 190 5) p 167 75 6) r 46 278 7) x 87 364 8) a 76 69 15 | P a g e Multiplication & Division Equations Example: 1) 2y 98 3) b 6 22 5) 33 y 16 7) 432 36a 16 | P a g e 2) 7x 168 4) x 9 2 6) 27m 972 8) 84 m 4 9) c 15 10 10) a 57 60 11) 2x 86 12) y 28 28 13) 42 p (25) 14) x 45 15) y ( 12) 49 16) 4 p 112 17) b 7 6 18) 17 | P a g e x 6 5 TWO STEP EQUATIONS Example 1) 7y 9 72 2) 4x 6 38 3) 7a 2 47 4) 5m 4 51 5) 3x 9 24 18 | P a g e 6) x 4 4 6 7) x 10 13 8 8) 8c 3 69 9) 49 7(y 7) 10) 18 3y 57 11) 3p 5 37 12) 6x 3 9 14) x 10 15 3 19 | P a g e 13) x 42 7 15) 2x 11 9 Proportions: REMEMBER, CROSS MULTIPLY! 1) 4 2 9 x 2) 6 3 a 8 3) 8n 8 8 3 4) 7 a 9 5 5) p 13 8 2 6) 3 x 13 3 7) 10 2 12 n 8) 9 x 7 14 9) x 4 9 6 10) x 10 12 2 20 | P a g e 11) 6 5 14 x 12) 3x 6 5 10 Writing Algebraic Expressions Example 1) 5 more than x 2) C less than 5 3) P added to 10 4) The product of 3 and h 5) Half of y 6) Three times a number 7) A number increased by three times y 8) A number y increased by itself 9) Three less than twice y 10) 2 more than the product of 6 and y 11) The quotient of a number divided by 10 12) The perimeter of a square with sides length x 13) 5 more than 2 times a number 14) 2 diminished by 7 times a number 15) Twice a number, decreased by 7 16) One-fourth of a number 17) 9 times a number, increased by 4 times the number 18) 8 times the sum of a number and 3 19) 3 times the sum of twice a number and 8 20) Two-thirds of a number 21) 10 meters higher than height x 21 | P a g e Properties: Match the following properties to their example. (note: some may be used more than once and some not all) A. Commutative of Addition H. Identity of Multiplication B. Associative of Addition J. Inverse of Multiplication C. Identity of Addition K. Distributive D. Inverse of Addition L. Multiplication of Zero F. Commutative of Multiplication M. Multiplication of -1 G. Associative of Multiplication ______13. (4 5) 2 4 (5 2) _______2. 1 1 7 1(5) 5 ______14. 19 0 19 _______3. 8 4 2 8 2 4 ______15. 15(1) 15 _______4. 47 6 7 64 ______16. 4 11 11 4 _______5. 4 7 4 x 4(7 x ) ______17. 6 92 2 9 6 _______6. (a b )7 7(a b ) ______18. 1 23 23 _______7. (3 2) 1 3 (2 1) _______19. 2 3 1 3 2 _______8. 70 0 _______20. 3x 1 3x _______9. 53 53 0 _______21. 25 0 4 0 _______10. 80 8 _______22. 1 0 1 _______11. (4 7) 3 4 (7 3) _______23. 9(x 3) 9x 27 _______12. 2(x 3) 2x 6 _______24. x (x ) 0 _______1. 22 | P a g e 7 2 2