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Equations and expressions · Grades 6 to 8

Evaluating expressions worksheet generator

Make evaluating expressions worksheets where students substitute values into expressions like 5(x − 10) or 3x² − x. Choose one variable, two variables, or expressions with exponents.

Evaluating expressionsLetter 8.5 × 11 in · answer key on the last page
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Evaluating expressions
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Find the value of each expression.

  1. 1.5(x − 5) when x = 1
  2. 2.9(x − 4) when x = 9
  3. 3.9x − 2 when x = −2
  4. 4.8x + 5 when x = 6
  5. 5.2x − 3 when x = −4
  6. 6.4x − 7 when x = 9
  7. 7.3x − 9 when x = 2
  8. 8.10 − 8x when x = −3
  9. 9.3(x − 10) when x = 2
  10. 10.5(x − 6) when x = 9
  11. 11.6x + 3 when x = −2
  12. 12.2x − 5 when x = −4
  13. 13.3x + 12 when x = −5
  14. 14.5(x − 8) when x = 2
  15. 15.9x + 6 when x = −1
  16. 16.9x − 10 when x = 7
nation1.netSheet 212312564
Evaluating expressions
Answer key
  1. 1.5(x − 5) when x = 1−20
  2. 2.9(x − 4) when x = 945
  3. 3.9x − 2 when x = −2−20
  4. 4.8x + 5 when x = 653
  5. 5.2x − 3 when x = −4−11
  6. 6.4x − 7 when x = 929
  7. 7.3x − 9 when x = 2−3
  8. 8.10 − 8x when x = −334
  9. 9.3(x − 10) when x = 2−24
  10. 10.5(x − 6) when x = 915
  11. 11.6x + 3 when x = −2−9
  12. 12.2x − 5 when x = −4−13
  13. 13.3x + 12 when x = −5−3
  14. 14.5(x − 8) when x = 2−30
  15. 15.9x + 6 when x = −1−3
  16. 16.9x − 10 when x = 753
nation1.netSheet 212312564 · answers
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About this worksheet

Substitute first, in parentheses, then follow the order of operations. Writing 5((9) − 10) instead of 5(9 − 10) looks fussy but prevents sign errors once negative values appear.

Teaching tip

Require parentheses around every substituted value for the first sheet, then drop the rule.

How to use the generator

Change the settings and the sheet updates as you go. New worksheet gives a fresh set of problems with a new answer key. Print or save PDF opens your browser's print window: pick Letter paper and 100% scale, or Save as PDF to keep a copy.