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  Number & Math Play

What's Your Sign?		  
Q In the equation below, replace each question mark with one of the four mathematical signs: +,-, ×, or ÷. Each sign can be used only once. Fill in the blanks to solve the equation. (Hint: the first sign is +.)

7 ? 5 ? 4 ? 7 ? 6 = 15


  
A (7 + 5) ÷ 4 × 7 - 6 = 15

If the first sign is +, there are only 6 possible combinations. You can get the answer by trying each one of them out. There is only one correct answer.

Source: Barnes and Noble,Mensa Mind Games for Kids,p. 18