The Purple Guide to Learning Speed Math in 10 Days

I bought this thinking it might be another one of those 'become a genius overnight' ebooks, and I was pleasantly surprised. It's just ten days of simple practice, and day one was exactly what the summary said - I spent twenty minutes doing basic addition with dice. I'm a little faster now, and I actually feel like I could keep going if I wanted to. Four stars because I wish there were printable worksheets in the back.

The pace is really beginner-friendly, which is good if you're starting from zero. But honestly, the first four days felt a little slow for me. I already knew how to count change and add simple numbers, so the left-to-right addition technique was useful but not mind-blowing. Still, day five's complements trick was a nice lightbulb moment. Solid if you're a true beginner, just a bit basic if you've ever done mental math casually.

I'm a total math-anxiety person - I genuinely freeze up at the grocery store when I need to calculate a discount. This guide tricked me into practicing by making day one so small and doable. The 'one small real win' - adding a list of three two-digit numbers without papers - took me about seven tries, but when it happened? I actually said 'wait, that's it?' out loud. Five stars for being honest and not making me feel dumb.

I did day one with my coffee, timed myself, and was surprised how much the left-to-right addition tip helped by day four. I didn't need to buy anything except a pack of index cards. It's not a magic trick, and the author is clear about that. Four stars because I would've liked a little more variety in the day-six practice checklist, but I finished all ten days and I'm definitely less calculator-dependent.

My favorite part was the self-assessment checklist on day two. It made me realize I actually had ten minutes a day for this after all. The techniques are fine - left-to-right addition, complements - nothing revolutionary, but it works if you do it. The progress table on day seven was helpful for reminding me that I wasn't 'behind.' Three stars because I wanted more context on why you'd want to be fast at this in real life, not just in a book.

The day-by-day format is perfect for someone like me who picks up a hobby and drops it in three days. Day one was just adding dice rolls and timing myself - so simple I didn't feel judged. Day eight's practice session story was relatable; I hit a wall too, but they talked through it. Four stars because the book is a bit short and I wanted more exercises after day ten. That said, I'm genuinely adding three-digit numbers faster now. Worth the coffee money.

I'll be honest - I skipped from day one right to day seven because I was curious what I was 'supposed' to know by then. The milestone table was the most useful part for me. When I went back and actually did the exercises, the left-to-right technique felt unnatural for the first hour, but by day four it started to click. Not a life-changer, but a solid, no-BS introduction. Three stars because the reader reviews in this book say 'read this again in a month' but that's not enough direction for long-term beyond day ten.

I'm a teacher's aide who works with kids who struggle with basic facts, and I bought this to think about how to make math less scary. Day one's orientation was perfect - it's literally just dice and paper, no worksheets, no pressure. The 'complements' trick on day five is something I used the next week at work. I gave it five stars because it's the first thing I've read that says 'you'll be faster, not a savant,' and that's exactly the right promise.