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Answer: you cannot make 7 (option b).
3 = -1 + 4 or -3 + 6
8 = 4 + 4 or 2 + 6
Negative Dice
Age 11 to 14
ShortChallenge Level 
Answer: you cannot make 7 (option b).
3 = -1 + 4 or -3 + 6
8 = 4 + 4 or 2 + 6
This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.
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