Starter quiz

  • Which of the below accurately completes the sentence? An algebraic term __________
    • must contain an x
    • must contain a constant.
    • contains at least one variable or unknown.  ✓
    • must have an equals sign after it.
  • Simplify a+2b+c+b+2c+d by collecting like terms.
    • a+3b+3c+d  ✓
    • a+2b^2+2c^2+d
    • a+2bc+2bc+d
    • a+4bc+d
  • Pick a number, any number. Double it. Add 10. Halve your answer. Subtract your original number. What did you notice?
    • There is no pattern.
    • The answer is always the number you started with.
    • The answer is always 5.  ✓
    • The answer is always 5 but it only works for whole numbers.
  • "Pick a number, any number. Double it. Add 10. Halve your answer. Subtract your original number". Which of the below expressions models this?
    • n \times 2 +10 \div 2-n
    • (n \times 2 +10) \div 2-n  ✓
  • What number comes next in this sequence? n, n+1, n+2, n+3...
    • 4
    • 4n
    • n+4  ✓
    • 4n+6
  • Add any two consecutive whole numbers. Which of the below are true?
    • The result is always odd.  ✓
    • The result is always "One more than double the smaller of your two numbers".  ✓
    • The result is always "One less than double the bigger of your two numbers".  ✓
    • The result is always even.
    • The result can be odd or even.
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