Chapter 1 Foundations for Algebra

Chapter 1 Get Ready!

• Skills Handbook, page 787 Factors

  Find the greatest common factor of each set of numbers.

  1. 12, 18
  2. 25, 35
  3. 13, 20
  4. 40, 80, 100
• Skills Handbook, page 787 Least Common Multiple

  Find the least common multiple of each set of numbers.

  5. 5, 15
  6. 11, 44
  7. 8, 9
  8. 10, 15, 25
• Skills Handbook, page 788 Using Estimation

  Estimate each sum or difference.

  9. 956 − 542 956 minus 542
  10. 1.259 + 5.312 + 1.7 1.259 , plus , 5.312 , plus 1.7
  11. $ 14.32 + $ 1.65 + $ 278.05 dollars , 14.32 , plus dollars , 1.65 , plus dollars , 278.05
• Skills Handbook, page 789 Simplifying Fractions

  Write in simplest form.

  12. 12 15 12 over 15
  13. 20 28 20 over 28
  14. 8 56 8 fifty sixths
  15. 48 52 48 over 52
• Skills Handbook, page 790 Fractions and Decimals

  Write each fraction as a decimal.

  16. 7 10 7 tenths
  17. 3 5 3 fifths
  18. 13 20 13 over 20
  19. 93 100 93 over 100
  20. 7 15 7 fifteenths
• Skills Handbook, page 791 Adding and Subtracting Fractions

  Find the sum or difference.

  21. 4 7 + 3 14 4 sevenths , plus , 3 fourteenths
  22. 6 2 3 + 3 4 5 6 , and 2 thirds , plus 3 , and 4 fifths
  23. 9 10 − 4 5 9 tenths , minus , 4 fifths
  24. 8 3 4 − 4 5 6 8 , and 3 fourths , minus 4 , and 5 sixths

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