Final Exam Pretest to 7.5 Solutions

Final Exam Pretest to 7.5 Solutions - Math 64/65 Final Exam...

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Unformatted text preview: Math 64/65 Final Exam Review ANSWERS 1. Evaluate. a. ( ) 3 5- 21 b. 3) (5 3 8 + + c. ( ) + 7 28 8 6 26 12 2. Use the rules of multiples to determine whether the number is a multiple of 2,3,5,9 or none of these. a. 252 b. 750 c. 1515 d. 8460 2,3,9 5,2,3 5, 3 5,2,9,3 3. Evaluate each of the each of the following: a. 6 2 b. 4 4 c. 6 10 d. 1 23 64 256 1,000,000 23 4. Evaluate each of the following using the order of operations. a. + )- ( 6 2 5 4 36 = 69 b. 4 3) 10(2- 100 + + = 54 c. + 3 2 * 4- 20 = 15 d. ( ) ( ) 2 * 4 24 8 + = 4 e. 2 * 4 24 8 + = 20 f. ( ) 2 * 3 1 4 7 2 - + = 11 g. 11 5 10 2 +- = 4 5. Write all the factor pairs of the following: a. 27 = 1,3,9, 27 __________________ b. 36 = 1,2,3,4,6,9,12,18,36 __________ c. 80 = 1,2,4,5,8,10,16,20,40,80 _______ 6. Find the prime factorization of the following: a. 150 b. 750 c. 225 2*3*5*5 2*3*5*5*5 3*3*5*5 7. Find the GCF of each pair of numbers. a. 36 and 48 b. 65 and 75 c. 120 and 30 GCF=12 GCF= 5 GCF=30 8. Find the LCM of each group of numbers: a. 30 and 66 b. 55 and 27 c. 49 and 9 LCM= 330 LCM= 1485 LCM=441 9. Reduce to lowest terms. a. 45 60 = 3 4 b. 35 21 = 5 2 1 3 3 = c. 72 27 = 8 2 2 3 3 = 10. Change each improper fraction into a mixed number. a. 77 65 = 12 1 65 b. 167 90 = 77 1 90 c. 54 7 = 5 7 7 d. 79 2 = 1 39 2 11. Write each mixed number as an improper fraction. a. 5 3 7 = 38 7 b. 10 2 3 = 32 3 c. 13 7 10 = 137 10 d. 9 5 9 = 86 9 12. Evaluate each of the following. Simplify each of your answers completely. a. 2 5 1 25 = 10 b. 6 7 63 28 = 27 13 1 14 14 = c. 2 3 2 1 8 = 17 5 1 12 12 = d....
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Final Exam Pretest to 7.5 Solutions - Math 64/65 Final Exam...

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