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Name:______________________ Date: _________________ Directions: Please show all of your work. You may not use a calculator for #’s 1 – 20. ALGEBRA 1B SKILLS REVIEW Order of Operations Evaluate the expression. ___________1.) ___________2.) 5 16 2 3 6 32 ___________4.) 4 1 5 42 ___________3.) 2 12 2 1 ___________5.) 1 9 3 18 3 ___________7.) 2.5 0.52 5 ___________9.) ___________6.) 10 52 2 6 ___________8.) 53 2 13 4 18 4 2 1 ___________10.) 1 6 8 2 7 4 3 15 2 1 Variable Expressions Evaluate the expression when a = 10, b = 9, c = 4 and d = -5 ___________12.) 4c 7.8 ___________11.) 2a 3 ___________13.) 27 8 b ___________14.) a 4 9c ___________15.) a 2 18b c ___________16.) bc 12.3 ___________17.) 3a 2b 6c ___________18.) ___________19.) (d ) a abc c2 b 3 ___________20.) ab 3 c d 3 Combining Like Terms 11 Evaluate the expression. ___________21.) 6k 7 k ___________22.) 12 y 8 12 ___________23.) 3xy 8 z 7 xy 3z ___________24.) a b c 2c ___________25.) 3a 2b 6c ___________26.) 6 x 2 9 x 2 ___________27.) 6w 12 3w 2 x 2 ___________28.) 3x 2 4 x 8 7 x 2 Distributive Property Use the distributive property to rewrite the expression without parentheses. ___________29.) 7x 3 ___________30.) 54 x 6 y ___________31.) 8 3 y 3 y ___________32.) 7 x 7 ___________33.) 5n 36 7n ___________34.) 2n 9 10n 11 ___________35.) 10 59n 9 ___________36.) 310b 10 5b 2 Comparing Numbers Write the real numbers from least to greatest. 1 , 1.75, 23 6 _____________________________37.) 8, 4.1, 9, _____________________________38.) 10, 6 , 9, 3 , 11, 0, 3 _____________________________39.) , 3.7, 18, 1 , 2 3 1 11 , 22 , 2.65 3 8 Identify the number that is given. Circle ALL that apply. 40.) Define the following: a) Natural (or Counting) Numbers: b) Whole Numbers: c) Integers: d) Rational Numbers: e) Irrational Numbers: f) Real Numbers: 41.) Identify the following numbers as rational, irrational, real, whole, integer, or natural. Please write all that apply. a) 1.417 b) 11 c) 25 𝟏 d) e) 𝟐 𝟑 2 f) 3.666666 .... Properties State each property being demonstrated. Each property from the word bank will be used. Commutative Property of Addition Associative Property of Addition Commutative Property of Multiplication Identity Property of Addition Associative Property of Multiplication Identity Property of Multiplication Zero Product Property 42. 3𝑏(1) = 3𝑏 _________________________________________ 43. 10 + 𝑑 + 5 = 10 + 5 + 𝑑 __________________________________________ 44. – 3(4𝑥) = (−3 ∗ 4)𝑥 __________________________________________ 45. – 2 + (1 + 𝑥) = (−2 + 1) + 𝑥 __________________________________________ 46. 5𝑎 + 0 = 5𝑎 __________________________________________ 47. (6)(𝑦)(15) = (6)(15)(𝑦) __________________________________________ 48. (4𝑤 − 3) ∗ 0 = 0 __________________________________________ Formulas Solve for the indicated variable. 49) P 2l 2w Solve for l . 51) C 50) 5 ( F 32) Solve for F. 9 I Pr t Solve for r. 52) 9 y 1.5 x 11 Solve for y. 53) 1 7 y 5 x 2 Solve for y. Solving Linear Equations Solve each equation. 54) a (6) 22 55) 14 r 3 x 2 10 57) 6a 3 56) 3 x 7 17 58) 5 59) 4( x 4) 8 60) x 6x 4 10x 44 61) 6 2( x 6) 36 62) 5 4x 12 29 x 63) 4 x 2(2 x 3) Linear Inequalities 11 Solve and graph each inequality. 64) 3 y 8 65) 16 4z 66) 4 y 16 4 67) 4x 5 6x 2x 18 2 x 1 11 68) 3 y3 8 69) 2 70) 9 x 4(4 x 3) 33 11 ANSWER KEY 26) 15x 2 quotient of two integers 9 27) 2 x 9w 12 2) 11 3) 9 4) 4) -16 5) 27 28) 4 x 4 x 8 1) 2 2 29) 7 x 21 30) 20 x 30 y 6) 10 7) 0.125 2 31) 24 y 9 y 8) 3 32) 7x 7 33) 16n 18 34) 8n 9 11) 23 35) 45n 55 12) 8.2 36) 25b 20 250 9) 29 10) 27 13) 11 41) a) real, rational b) real, irrational, 1 6 37) 9,4.1, ,1.75,8,23 14) 10,036 15) -58 19) 1 200 2 3 39) 43) Commutative Property of Addition 44) Associative Property of Multiplication 40) a) 1,2,3,4,5…. 20) 230 k 22) 12 y 20 23) 4 xy 11z 24) a b 3c 25) 3a 2b 6c e) real, irrational 42) Identity Property of Multiplication b) 0,1,2,3,4,5,… 21) d) real, rational 38) 11,0, 3 ,3 , 6 ,9,10 1 11 18,1 , ,2.65, ,3.7, 22 3 8 18) 36 c) real, rational, integer whole number, natural number f) real, rational 16) 48.3 17) 24 f) The set of numbers consisting of the positive numbers, negative numbers, and zero. (rational and irrational numbers) c) Whole numbers and their opposites (…-3,2,-1,0,1,2,3,…) d) A number that can be written as the quotient of two integers e) A number that cannot be written as the 11 45) Associative Property of Addition 46) Identity Property of Addition 47) Commutative Property of Multiplication 48) Zero Product Property 49) l P 2w 2 50) r I Pr 9 C 32 5 51) F 52) y 1.5 x 9 53) y 5x 3 7 54) a 16 55) r 11 56) x 20 57) a2 58) x 40 59) x 6 60) x 8 3 61) x 21 62) x 4 63) No Solution For #64-70, check student graphs. 64) y 65) 8 3 z 4 66) y 3 67) x 13 4 68) x 18 69) y 19 70) x 3 11