You'll need a box with a 4 digit padlock for this puzzle. Kids have to answer 8 questions & substitute answers into an equation to get a 4 digit number - to open the box é win whatever you put in there. Check my other ones .. Easy to make your own é share. Thanks Chris Smith for your original that caught my imagination.
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Looks lovely but as there are no answers it may be a bit risky to use because of its complexity.
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