GED Practice

GED Math Review: Adding and Subtracting Linear Expressions


Questions:


  1. Bradley sells produce in boxes at a farmer's market. He put 6 ears of corn and 9 tomatoes in each box. The expression 6b + 9b represents the total pieces of produce in b boxes. Simplify the expression by combining like terms.
    • 3b
    • 15b
    • 16b
    • already simplified
  2. Andre bought pencils in packs of 8. He gave 2 pencils to his sister and 3 pencils from each pack to his friends. The expression 8p - 3p - 2 represents the number of pencils Andre has left from p packs. Simplify the expression by combining the terms.
    • 3p
    • 5p - 2
    • 11p - 2
    • already simplified
  3. A radio show lasts for h hours. For every 60 minutes of airtime during the show, there are 8 minutes of commercials. The expression 60h - 8h represents the airtime in minutes available for talk and music. Simplify the expression by combining like terms.
    _________
  4. The expression 15n + 12n + 100 represents the total cost in dollars for skis, boots, and a lesson for n skiers. When simplified, this expression would become _________ The total cost for 8 skiers would then be _________.
  5. 7x + 2x + 5x
    • 10x
    • 14x
    • 9x + 5x
    • already simplified
  6. 8a + 11 - 2a
    • 17a
    • 6a + 11
    • 10a - 11
    • already simplified
  7. 12b - 8b + 3
    • 7b
    • 4b + 3
    • 20b + 3
    • already simplified
  8. 9c - 6 + c
    • 4c
    • 4b + 3
    • 10c - 6
    • already simplified
  9. 4p + 1 - p
    • 4p
    • 3p + 1
    • 5p - 1
    • already simplified
  10. 8y - 2y + y
    • 7y
    • 11y
    • 6y + y
    • already simplified
Answers:

  1. 15b
  2. 5- 2
  3. 52h
  4. 27n + 100; $316
  5. 14x
  6. 6a + 11
  7. 4b + 3
  8. 10c - 6
  9. 3p + 1
  10. 7y





Reference:


Complete Test Preparation for the GED Test 2014 by Steck-Vaughn