2 + ?5 = 3  3  ?10 = 7 
?8 + 1 = 7  ?5  1 = 6 
1  ?2 = 3  7  ?12 = 5 
4 + ? + ? = ? + ? + ?2 + 2 = 2 + 2 + 2 + 6 
What do the question marks represent?
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Topics: Starter  Algebra  Negative Numbers
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5  10 
8  5 
2  12 
2 (assuming all the question marks represent the same number) 
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