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Evaluate expressions with two variables and exponents

Year 7 maths · Fieldbook Learning

Name ______________________ Date __________

Replace each letter with its value. Do exponents first.

  1. Evaluate a² + b when a = 6 and b = 2.
  2. Evaluate a² + b when a = 6 and b = 6.
  3. Evaluate a² + b when a = 2 and b = 8.
  4. Evaluate a² + b when a = 7 and b = 6.
  5. Evaluate a² + b when a = 2 and b = 1.
  6. Evaluate a² + b² when a = 2 and b = 9.
  7. Evaluate a² + b when a = 3 and b = 5.
  8. Evaluate a² + b² when a = 1 and b = 9.
  9. Evaluate a² + b when a = 12 and b = 12.
  10. Evaluate a² + b when a = 6 and b = 7.
  11. Evaluate a² + b² when a = 12 and b = 11.
  12. Evaluate a² + b when a = 7 and b = 9.
  13. Evaluate x² + y² when x = 14 and y = 7.
  14. Evaluate x² + y² when x = 11 and y = 5.
  15. Evaluate x² + y² when x = 8 and y = 6.
  16. Evaluate x² + y² when x = 3 and y = 9.
  17. Evaluate m² + n² when m = 19 and n = 17.
  18. Evaluate m² + n when m = 6 and n = 11.
  19. Evaluate m² + n² when m = 8 and n = 20.
  20. Evaluate m² + n when m = 18 and n = 9.
More free practice: fieldbooklearning.com/uk/practice/year-7/evaluate-expressions-with-two-variables-and-exponents/

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Answer key: Evaluate expressions with two variables and exponents

  1. 38
  2. 42
  3. 12
  4. 55
  5. 5
  6. 85
  7. 14
  8. 82
  9. 156
  10. 43
  11. 265
  12. 58
  13. 245
  14. 146
  15. 100
  16. 90
  17. 650
  18. 47
  19. 464
  20. 333