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'!
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:
- Pythagorean Code-Breaker Activity
- Adding and Subtracting Decimals Code-breaker Activity
- Quadratic Formula Code-Breaker Activity
- Multiplying 1 digit by 2 digit integers code-breaker activity
- Multiplying Decimals Code Breaker Activity
- Simplifying Radicals Activity
- Multiplying Exponents Code-breaker Activity
- Prime Factorization Game
- Scientific Notation Code Breaker Activity
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: