This series of Math Books is full of actlvities designed for early learners relate to each other. The books are an excellent foundation to help children confidently approach Math. 

Substraction is taking away from a number. The children will discover through different activities, how many objects are left when a number is taken away. As they work on this subtraction workbook, they will learn substraction language such as take away, minus, difference, left, less, how many are left? and acquire a strong framework for basic mental math.