Special Symbols

Words of “Wiz-dom”-These questions are not seen on the ACT except on a very rare occasion.  However, there is always one on every SAT test.

These can be the most daunting of all the math problems. When you first see one, you are going to ask yourself, “What course was I supposed to learn this in? I must have been absent the day they taught this!” Don’t worry. You didn’t miss anything. The test writer likes to introduce weird math symbols and define them. Your task will be to apply the math principle(s) the symbol defines.

These are just substitute symbols for math operations you have known for a long time. The key will be that you will see unknowns (letters) and a strange symbol. There will be an equal sign that tells you what the strange symbol is equal to in normal math operations. Then you will be given numbers that you will need to substitute in place of the unknowns given by the test writer. On a “one for one” basis, substitute the number values into the normal math operation based on their positions relative to the strange symbol. Like the Wizard says, “Its easier done than said.” So, let’s do a few.

Sample Questions

Answer to Question #10

20.  Given that the two conditions are true, what is the solution of  the equation.

 

Answer to Question #20

SAT Home Page

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