Help me defeat these 1st grade PROBLEMS!

michael_pham
Sat, 27 Nov 2004 20:17:24 +0000

Well I would do what I did above, that eliminates c, d, and e. And I’m left with a and b. Therefore, I pick different numbers until I get one of those out. Lets choose r = -4 and s = -1

r - s > r + s
-4 - (-1) > -4 + (-1)
-3 > -5
Therefore, we eliminated a, so the answer is b).
Yeah I always play with numbers, eliminate some choices, and then try to prove one of the others wrong by logical brute force.
But, I think someone has better methods than me.