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#______ Name___________________________ Date______________ Chapter 4 Review & Practice pg. 82 Set A (pp. 68–69) (Write your answers on the line and Show your Work!!!) Use rounding to estimate the sum. 1. 2. 3. 4. 5. 7. 8. 9. 10. 2. 3. 4. 5. 2. 3. 4. 5. Use front-end estimation to estimate the sum. 6. Set B (pp. 72–73) Find the sum. 1. Set C (pp. 76–79) Find the sum. 1. 6. Estimate to decide if the sum 1,874 + 3,205 is greater than 4,000. Explain your answer. _________________ 7. Write the missing addend. 4,000 + = 5,100 _________________ Set D (pp. 80–81) Write + or – to complete the number sentence. 1. 8 15 = 23 ______ 4. 35 = 29 6 ______ 2. 95 16 = 79 ______ 3. 517 5. 42 9 = 51 ______ 6. 27 483=1,000 ____ 4 = 23 ______ 7. Shelby had $18.50. She spent $7.25 at the car wash. Write an expression that shows how much she spent. _______________________ #______ Name___________________________ Date______________ Chapter 4 Test pg. 83 CHECK VOCABULARY AND CONCEPTS (Write your answers on the line and Show your Work!!!) Choose the best term from the box. 1. To find about how many, you can regroup . (p. 68) ________________ 2. When you estimate a sum by adding the front digit of each addend, you are using . (p. 68) _________________________ estimate front-end estimation For 3, think of how to model 129 + 138. (pp. 70–71) 3. Do you need to regroup to find the sum 129 + 138? Explain. __________________________________________ CHECK SKILLS For 4–5, use rounding to estimate the sum. For 6–7, use front-end estimation to estimate the sum. (pp. 68–69) 4. 5. 6. 7. Find the sum. Estimate to check. (pp. 72–73, 76–79) 8. 419 + 451 = ______ 11. 12. 9. 321 + 683 = _______ 13. 10. 127 + 315 + 299 = ______ 14. Write + or – to complete the number sentence. (pp. 80–81) 15. 58 17. 845 12 = 46 ______ 369 = 476 _______ 16. 42 67 = 109 _____ 18. 92 = 165 73 _____ CHECK PROBLEM SOLVING 19. Mr. Samuel has 150 pennies in two jars. There are 20. Two numbers have a sum of 47. Their difference is 40 more pennies in one jar than in the other. How 5. What are the two numbers? (pp.74-74) many pennies are in each jar? ________________________________ (pp. 74–75) _________________________