Pay What You Want sale

Currclick is running a "PAY WHAT YOU WANT" sale for a variety of Math Mammoth books from the Blue series.

"Pay What You Want" means exactly that; it also means you CAN even get these books for FREE... though of course, I appreciate it if you pay. But sometimes people are in a really tight financial situation, and I understand that. :)

This sale runs till July 22.
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