age-appropriate content includes a recommended age and grade range to meet your child’s unique needs. description: the goal of math bits is to offer "fun, yet challenging, lessons and activities." i show how can this be done in the attached project. all of the lessons (and more!!) actually, i love everything about this book! and let me tell you, they're just as hilarious as i expected. i now like to be more expressive. instant storage is ideal for protecting those files you come back to often, while cold storage is better for tucking away data you wont need for a while. 