SAT Math 4.3 Numbers and Operations
|Elementary Number Theory||Prime Numbers|
|Passport to Advanced Math||Radicals and rational exponents|
|Pre-Algebra||Properties of Numbers|
|Product Type||SAT Math|
|Properties of Numbers||Basics of Numbers|
|SAT Math||Numbers and Operations|
is to substitute real prime numbers for the variables.
Let's say a = 2 and b = 3.
Now we can test each answer choice.
Choice A: 2 times 3 is 6. 6 is not prime. Boom -- gone.
Choice B: 2 cubed is 8. 8 isn't prime. Outta here.
Choice C: 2 plus 3 is 5. 5 is prime.
Choice D: 3 squared is 9. 9 isn't prime.
Only choice C can give us a prime number... ...so that's our answer.
An answer choice by any other letter would smell as sweet...