GCF and LCM code-breaker activity - FREE

Grade Levels
PDF (4 MB|2 pages)


Greatest Common Factor and Least Common Multiple (GCF & LCM) Activity FREEBIE

Make finding the GCF and LCM fun with this code-breaker game. Students are asked to find the GCF or LCM of two or three numbers. Ideal as a bellringer or quick review activity.

The code is random to avoid your students attempting to guess a riddle rather than 'do the math'!

Another free math resource you may like.

Make it more engaging by offering a small reward for the first student to crack the code. This makes a great spiral review activity.

If you enjoyed this GCF LCM activity, you may enjoy some of my other code breaker activities which can be found here:

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If you would like to see an example of some of my other resources, I have some free sample versions:

- Rational (fractional) and negative exponents here: *** FREE Rational and negative exponents Bingo! game ***

- Estimating calculations by rounding to one significant figure here: *** FREE Estimating Bingo! game ***

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A few of my other resources you may like:

Multiplying Binomials by expanding brackets Bingo!

Factoring Simple Quadratics Bingo!

Factoring Harder Quadratics Bingo!

Back to school first lesson warm-up math game

Rounding Bingo!

Negative Numbers Bingo!

Multiplying and Dividing with Powers of Ten Bingo!

Ten Tors Math

Total Pages
2 pages
Answer Key
Teaching Duration
30 minutes
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