Name: Class: Date: 6. Explain how you could use a number line to determine the number that is 7 more than 9. What is the number?
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1 Name: Class: Date: Course 2 Chapter 4 Practice Test Pre-Test 1. Use the number line to determine the sum 3 + ( 7). Determine the missing addend = 9 Add or subtract ( 8.45) ( 27.9) Post-Test 5. Use the number line to determine the sum 5 + ( 9). Determine the missing addend. 6. Explain how you could use a number line to determine the number that is 7 more than 9. What is the number? 7. Write a number sentence to represent the model. Explain how you determined the number sentence. Add or subtract
2 Name: Mid-Chapter Test Use the number line to determine the number described by each statement. Explain your reasoning. 9. The number that is 3 less than 6. Use the number line to determine the unknown addend. Write the number in the blank = 7 End of Chapter Test Use the number line to determine each sum Use the number line to determine the unknown addend. Write the number in the blank = = Describe the set of integers that, when added to 5, give a sum greater than 0. Determine each sum ( 16) 2
3 Name: The table gives the lowest temperatures ever recorded in five U.S. cities. Use this table to answer each question. Lowest Recorded Temperatures ( F) Honolulu, HI Huron, SD Mobile, AL Norfolk, VA St. Louis, MO How much greater was Norfolk s lowest temperature than St. Louis s lowest temperature? Determine each sum or difference Add or subtract using algorithms Ê 8 1 ˆ Ë Á ( 15.86) ( 6.7) Standardized Test Practice 21. Which statement explains how you can use a number line to determine the number that is 4 more than 9? a. Go to 9 on the number line and then move 4 units to the left. b. Go to 9 on the number line and then move 4 units to the right. c. Go to 4 on the number line and then move 9 units to the right. d. Go to 9 on the number line and then move 4 units to the right. 3
4 Name: 22. A number game is played with a number cube and a number line. When it is your turn, you roll the number cube twice. The first roll tells you how many units to move to the left from the starting point. The second roll tells you how many units to move to the right from where you stopped after your first roll. Which number sentence represents starting at 2, rolling 4 on the first roll and 2 on the second roll? a ( 2) = 0 b ( 2) = 8 c. 2 + ( 4) + 2 = 4 d. 2 + ( 4) + 2 = Which statement explains how you can use a number line to determine the number that is 3 less than 4? a. Go to 4 on the number line and then move 3 units to the left. b. Go to 4 on the number line and then move 3 units to the right. c. Go to 3 on the number line and then move 4 units to the left. d. Go to 4 on the number line and then move 3 units to the left. 24. What sum or difference is shown by the figure? a. 5 + ( 12) = 7 b = 5 c. 5 ( 12) = 7 d. 7 + ( 12) = Determine the sum ( 24.6). a b c d
5 Course 2 Chapter 4 Practice Test Answer Section 1. ANS: The sum is 10. PTS: 1 REF: 4.2 NAT: 7.NS.1.b TOP: Pre Test 2. ANS: 14 PTS: 1 REF: 4.3 NAT: 7.NS.1.a 7.NS.1.b 7.NS.1.c TOP: Pre Test KEY: additive inverses 3. ANS: 2.65 TOP: Pre Test 4. ANS: TOP: Pre Test 5. ANS: The sum is 14. PTS: 1 REF: 4.2 NAT: 7.NS.1.b TOP: Post Test 6. ANS: Go to 9 on the number line and then move 7 units to the right. The number that is 7 more than 9 is 2. PTS: 1 REF: 4.4 NAT: 7.NS.1.a 7.NS.1.b 7.NS.1.c 7.NS.1.d TOP: Post Test KEY: zero pair 7. ANS: 14 ( 5) = 9 Start with 14 negative counters. If you subtract 5 negative counters, 9 negative counters remain. PTS: 1 REF: 4.4 NAT: 7.NS.1.a 7.NS.1.b 7.NS.1.c 7.NS.1.d TOP: Post Test KEY: zero pair 1
6 8. ANS: = 1 16 TOP: Post Test 9. ANS: The number that is 3 less than 6 is 9. Go to 6 on the number line and then move 3 units to the left. PTS: 1 REF: 4.4 NAT: 7.NS.1.a 7.NS.1.b 7.NS.1.c 7.NS.1.d TOP: Mid Ch Test KEY: zero pair 10. ANS: = 7 PTS: 1 REF: 4.2 NAT: 7.NS.1.b TOP: Mid Ch Test 11. ANS: The sum is 7. PTS: 1 REF: 4.2 NAT: 7.NS.1.b 12. ANS: = 12 PTS: 1 REF: 4.2 NAT: 7.NS.1.b 13. ANS: = 14 PTS: 1 REF: 4.2 NAT: 7.NS.1.b 14. ANS: All integers greater than 5 will give a sum greater than 0 when added to 5. PTS: 1 REF: 4.3 NAT: 7.NS.1.a 7.NS.1.b 7.NS.1.c KEY: additive inverses 15. ANS: 26 PTS: 1 REF: 4.3 NAT: 7.NS.1.a 7.NS.1.b 7.NS.1.c KEY: additive inverses 16. ANS: 15 F PTS: 1 REF: 4.4 NAT: 7.NS.1.b 7.NS.1.c 7.NS.1.d KEY: zero pair 2
7 17. ANS: = ANS: = ANS: ANS: ANS: B PTS: 1 REF: 4.2 NAT: 7.NS.1.b 22. ANS: C PTS: 1 REF: 4.1 NAT: 7.NS.1.a 7.NS.1.b 23. ANS: A PTS: 1 REF: 4.4 NAT: 7.NS.1.a 7.NS.1.b 7.NS.1.c 7.NS.1.d KEY: zero pair 24. ANS: B PTS: 1 REF: 4.2 NAT: 7.NS.1.b 25. ANS: B PTS: 1 REF: 4.3 NAT: 7.NS.1.a 7.NS.1.b 7.NS.1.c KEY: additive inverses 3
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