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SAT Math Overview. I’ll be using Barron’s SAT Prep. Gives Tactics 17 Tactics Not all apply to each of the four sections Gives Facts Lots of facts (three years worth) Memorize them over time, make note cards We will hit the high points. Puzzle
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SAT Math Overview • I’ll be using Barron’s SAT Prep. • Gives Tactics • 17 Tactics • Not all apply to each of the four sections • Gives Facts • Lots of facts (three years worth) • Memorize them over time, make note cards • We will hit the high points
Puzzle Here are 4 marks. Now put down five more straight marks and make ten. | | | |
Number and Operations Simplify the following problems: • 2 + 6/2 + 6 • 2 + 3*4 • 8/4*2 + 6*2 • 10 – 8 + 6 • 2 + 3(2+32) • Tactic 6: SUBSTITUTION: Replace the variable with numbers.
Number and OperationsTactic 1 • 4 Tactics of the 17 apply to Numbers and operations. • If the average (arithmetic mean) of 2,7,and x is 12, what is the value of x? a) 9 b) 12 c) 21 d) 27 e) 36 • Tactic: BACKSOLVE: Test the various choices to by starting with C
Number and OperationsTactic 2 • If a is equal to b multiplied by c, which of the following is equal to b divided by c? a) a/bc b) ab/c c) a/c d) a/c e) a/bc • Tactic: SUBSTITUTION: Replace the variable with numbers. • Major Hint: Make all elements alike. 2 2
Number and OperationsTactic 3 • At Central H.S. each student studies exactly one foreign language. Three-fifths of the students take Spanish, and one-forth of the remaining students take Italian. If all of the others take French, what percent of the students take Italian? a) 10 b) 15 c) 20 d) 25 e) 30 • Tactic: BE CONCRETE: If possible, choose an appropriate number rather than using x.
Number and OperationsTactic 4 • A prize of $27,000 is to be divided in some ratio among three people. What is the largest share? a) $18,900 b) $13,5000 c) $8100 d) $5400 e) $2700 • Tactic: Eliminate the Absurd: When you have no idea how to solve a problem, eliminate the absurd choices and guess.