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Chicago High School for the Arts Algebra 1 Name ______________________________________________________________ Date _____________________________ Unit 1 – Quiz 1: Whole Numbers & Integers **Please remember to SHOW ALL WORK in order to receive full credit, and circle or box your final answer. Focus REVIEW PRIMARY Standard Description C.2.1 Recognize one-digit factors of a number 3 A.2.2 Solve some routine two-step arithmetic problems 2 A.3.1 Solve routine two-step or three-step arithmetic problems… Exhibit knowledge of elementary number concepts including … primes and greatest common factor 13 C.3.1. Points Percent # Correct # of Points 4 Grade 22 Recognize one-digit factors of a number [C.2.1] _______________________________________________ 1. Lists all the factors of 8. 2. 2,678,320 is evenly divisible by how many integers from 1 to 10 inclusive? a. b. c. d. e. Four Five Six Seven Eight Solve some routine two-step arithmetic problems [A.2.2] __________________________________ 3. Justin earns $12 per hour the first 8 hours he works and $18 per hour for each hour after that. How much does Justin earn for working a 12-hour day? Solve routine two-step or three-step arithmetic problems [A.3.1] _________________________ ( ) 4. To simplify the expression 9 × 33- 5 ¸ 2 , what do you do first? a. b. c. d. e. Divide by 2 Subtract 5 Multiply by 9 Multiply by 33 Square 5 2 Chicago High School for the Arts Algebra 1 5. Simplify the following: 52 + (12 - 4)× 4 - 6 a. 9 b. 31 c. 36 d. 51 e. 66 Evaluate the following expressions using the order of operations: 6. 12 × 4 +15- 9 ¸ 3 2 8(-3) + (-4) 5- 9 7. Exhibit knowledge of elementary number concepts including… primes and greatest common factor [C.3.1] ______________________________________________________________________________ 8. (Primes) A prime number is a whole number greater than 1 that has only 1 and itself as factors. All other whole numbers greater than 1 are considered composite. Which of the following is true of the number 39? a. 39 is prime because it has no factors other than 1 and 39. b. 39 is prime because it is an odd number. c. 39 is composite because it has 13 as a factor. d. 39 is composite because it has 9 as a factor. e. It is not possible to tell whether 39 is prime or composite. 9. (Primes) What is the greatest prime number that is less than 36? Chicago High School for the Arts Algebra 1 10. (GCF) What is the greatest common factor of 10, 15 and 25? a. b. c. d. e. 3 5 15 25 75 11. (GCF) What is the greatest common factor of 24 and 32?