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S.A.T. Math Testing Tactics

S.A.T. Math Testing Tactics. Tactic 10: Don’t Do More Than You Have To. Look for shortcuts Many problems have more than one correct way to obtain the right solution Think: Quick, Efficient, Accurate. Don’t Do More Than You Have To!. If , what is ?. First:

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S.A.T. Math Testing Tactics

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  1. S.A.T. Math Testing Tactics Tactic 10: Don’t Do More Than You Have To

  2. Look for shortcuts • Many problems have more than one correct way to obtain the right solution • Think: Quick, Efficient, Accurate Don’t Do More Than You Have To!

  3. If , what is ? First: Notice that there is a 3x in the given equation AND the expression we are evaluating. This means we can solve for 3x instead of x. This will save time! 3 Example 10.1

  4. If and , what is the average (arithmetic mean) of x and y? First, what does the average of x and y look like? Example 10.2

  5. Next, since we have two equations, let’s try adding them together (Tactic 17): Average of x and y = 1.8 Ex 10.2 (continued)

  6. If , what is the value of ? Notice the equation and the expression both have a 5x 7 Example 10.3

  7. ALWAYS LOOK FOR SHORTCUTS! Don’t find 20% and 30% separately if you can find 50% once. Don’t find x if you really only need 5x. Don’t find individual numbers if you only need their sum. DON’T WASTE PRECIOUS TIME! In conclusion: EVERY SECOND IS PRECIOUS– WORK SMARTER, NOT HARDER!

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