Sell your books and get cash! Enter to win $500 daily! Click here for more info.

Temporarily out of stock Temporarily out of stock

Check back soon as quantities are replenished frequently.
30 Second Challenge The Original Brain Trainer
view larger

30 Second Challenge The Original Brain Trainer

Lock, Norman D.
ISBN-10: 1844546756
ISBN-13: 9781844546756

Perfect for anyone young or old looking to sharpen their mental math skills, these fast and fun puzzles are designed to rejuvenate and stimulate the mind. A range of difficulty levelsfrom beginner to advancedare included, making this a suitable collection for all ages and abilities. With puzzles that include simple addition and substraction as well as more challenging problems involving percentages, fractions, and square roots, these are the ultimate brain-training tools for people on the go and anyone who wants to expand their mental agility.
show more show less

List price: $11.95
Edition: 2008
Publisher: John Blake Publishing, Limited
Binding: Trade Paper
Pages: 184
Size: 4.25" wide x 6.75" long x 0.50" tall
Weight: 0.24 lbs.
Language: English

100% Money Back Guarantee: Wrong item? No problem! Our hassle-free returns policy has you covered. We'll also process your order within 1-2 business days. Learn more about our shipping policy.