GCF & LCM codebreaker puzzle - FREEBIE
Greatest Common Factor and Least Common Multiple (GCF & LCM) Activity FREEBIE
Make using find 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.
I have a collection of free math games and resources that you are welcome to access:
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