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A Maths Starter Of The Day

Alexis thinks of a number.

She multiplies this number by 7 then subtracts 6.

Her answer is 50. What was Alexis's original number?

Pencil

Alexis's friend thinks of a number.

No calculators allowed

She then does the following operations:

Multiply by 3, subtract 7, multiply by 2 then add 49 (in that order). She finds that the number she ends up with is 13 times her original number.

What was Alexis's friend's original number?

A Mathematics Lesson Starter Of The Day

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Topics: Starter | Algebra | Functions

  • Teacher, Derbyshire
  •  
  • Used this as a plenary question to a year 8 lesson on solving equations with x on both sides. Good challenge both in setting up the equation and then solving it.
  • Teacher, Surrey
  •  
  • When checking answer, it only works on non-scientific calculators as they do not apply BIDMAS!!
  • Mr J, Balshaws
  •  
  • We found this starter very interesting. Harry really loved it!!!

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This starter has scored a mean of 2.7 out of 5 based on 543 votes.


Previous Day | This starter is for 11 April | Next Day

 

Too difficult? There are some simpler questions like this on the THOAN Starter page.

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Whether your students each have a TabletPC, a Surface or a Mac, this activity lends itself to eLearning (Engaged Learning).

Laptops In Lessons

Here a concise URL for a version of this page without the comments.

Transum.org/go/?Start=April11

Here is the URL which will take them to the Think Of A Number exercise.

Transum.org/go/?to=THOAN

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Here is the URL which will you to our eQuation Generator which provides unlimited practice solving linear equations.

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