Not a problem.
Heck, i can deal with it even if it's every post. LOL! 
Just get the bot spammers off our backs!
Ok for me. Let's hope it kills the spam. Thanks Mr. Admin!
Looks like we just got rid of one of the spammers called 'talk'. 
Way to go! 
No problem, much better than trying to type in a barely legible scribble some places use
'Talk' didn't last long.
Sweetness!
No more tasty spam?? lets see how this goes, should help with most of the automated ones anyway, which has been the biggest issue recently
Problem with the voting system is, I'm seriously tempted to select the last one for the lolz, but I had to try hard not to.
Not a problem, let's hope it helps.
lucky for me, windows has a calculator
Do whatever it takes to eliminate the unwanted spam irritation.
As long as the captcha doesn't want us to solve these problems .... it looks like a good way to prevent spam. But aren't bots nowadays capable of detecting the simple captchas?
Lucky for me I got my degree in accounting. 
Yep, some bots probably will be able to figure out the math CAPTCHA. In fact with complex OCR, they can even figure out the wavy letters CAPTCHAs. But oh well, it will keep some of them away.
I have no problem with it at all. Thanks for all the work you've put in trying to deter the spammers. I'm sure it will pay off and is very much appreciated by the member here.
Had you gone with Goggle's wavy letter crap instead of math questions I might have a different answer for you. I have the worse time making out that letter nonsense.
I'm cool with it since that was one of my suggestions
Would they also be able to use a bot for a CAPTCHA that uses a question format (yes, like CPF)? That seems a little more complicated but it would be easy answer for anyone actually reading it.
THANK YOU for not using the wavy letter crap Craigslist uses. I have to refresh that so many times to find something I can actually decipher.
There are other types that require some human intelligence, such as "Which doesn't belong? - Apple, Pear, Stove, Banana". I might take a look at those too.
Boo…don’t go with that. I’d have a 50/50 chance of getting it right since stove or banana belong with the apple & pear unless it’s in a salad. My instinct says “stove” but my brain tells me “banana” since bananas aren’t fruit but actually an herb. 
C'mon now.. you're only making it more difficult for yourself. The banana is botanically both a fruit and an herb 
haha
And don't even get started with classifying tomatoes!