Tiger Math is a self-guided math tutoring series which is systematically designed for kids in K - 6, their parents, and their educators. The main goal of Tiger Math is to build math foundation by acquiring a sense of numbers and mastering the four operation skills in terms of addition, subtraction, multiplication, and division. Just do 2 sheets a day for 10 minutes ! And perforated sheets make it so easy to tear out! Tiger Math series helps your kids build math confidence as well as form good habits to study math on a daily basis. Goals of Level C-1 1. Practice subtracting single digit numbers from the numbers in between 1 and 14. (Week 1 ~ 4) 2. Practice subtraction with vertical as well as horizontal equations. (Week 1 ~ 4)