Simplify 5a + 7a.
  • 12a
  • 12aa
  • 57a
  • 57aa
Which of the following is not a mathematical expression?
  • 6
  • 6a x 14
  • 5a - 4b +16c x 8d
  • Oh my gosh!
If I have x rabbits and you have twice as many, how many rabbits have you got?
  • 2x
  • 2 + x
  • 2 - x
  • x2
Peter has x brothers, Paul has y brothers and Graham has z brothers. Between the three boys, how many brothers have they got?
  • xyz
  • x + y + z
  • x + y - z
  • x - y + z
What is the simplification of 3a + 4b + 6c + 3a - 6c - a - 3b?
  • 4a + 2b - 3c
  • 5a + b
  • 6a - 3b
  • 9a - 2b - c
Jane is c years old and her sister Katie is three years younger so how old is Katie?
  • c3
  • c + 3
  • c - 3
  • c - 3 - 3
Suzie is x years old and she has a sister called Rosie who is four years older. Rosie's mother was 28 when Rosie was born. How old is Rosie's mother now?
  • 7x
  • x + 28
  • x - 4
  • x + 32
In an algebraic expression letters are often used to represent what?
  • Other letters
  • Only numbers greater than 1
  • Only numbers less than 1
  • Values
Which of these is a simplification of 2a x 3a?
  • 5a
  • 6a
  • 23aa
  • 6a2
Simplify 4a + 5b + 6b + 11a
  • 26ab
  • 15a2 + 11b2
  • 15a + 11b
  • 9a + 17b
0 h : 0 m : 1 s

Answered Not Answered Not Visited Correct : 0 Incorrect : 0