CBSE  /  Class 7  /  Maths  /  Algebraic Expressions

  • 1. 
    Add 2 mn, -4 mn, 8 mn, -6 mn

  • 0
  • 2 mn
  • 8 mn
  • 10 mn

  • 2. 
    Add a + b - 1, b - a + 1, 1 - 26

  • 1
  • -1
  • 2
  • -2

  • 3. 
    Add 4x²y, -3x²y, -7xy², 7xy²

  • x²y
  • xy²
  • xy
  • -x² y

  • 4. 
    Simplify : p + (p - q) + q + (q - p)

  • p
  • q
  • p + q
  • p - q

  • 5. 
    Simplify : z² + 11z² - 5z - 11z² + 5z

  • z²
  • -z²
  • 5z
  • -5z

  • 6. 
    Subtract - xy from xy

  • xy
  • 2xy
  • 3xy
  • 4xy

  • 7. 
    Subtract y² from - 5y²

  • -6y²
  • 6y²
  • y²
  • -5y²

  • 8. 
    What should be added to x² + y² to get x² + y² + 2 xy?

  • xy
  • 2xy
  • 4xy
  • -2xy

  • 9. 
    What should be subtracted from x² + y² - 2xy to get x² + y²?

  • 2xy
  • -2xy
  • xy
  • -xy

  • 10. 
    Find the value of the expression x + 2 for x = -2

  • 0
  • 2
  • -2
  • 4
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