Missing Parenthesis
Insert the missing parentheses into each equation to make it true.
SOLUTION
The solutions are:
- (((9+12)÷(3+4))÷(2+1))×2 = 2
- ((9+12)÷3)+4÷(2+1×2) = 8
- (9+12)÷3+4÷2+1×2 = 11
- 9+12÷(3+4÷(2+1×2))= 12
Source:
“Intermediate Algebra for College Students” by Karl. J. Smith and Patrick J. Boyle
