The QuarterMile Math Pratice Level 1 Numbers &amp; Letters- Keyboarding, Learning the Alphabet, Counting, Numbers, Place Value. Whole Numbers- Grouping/Regrouping, Doubling/Halving, Twins and Neighbors, Addition, Subtraction, Multiplication, Division, Combination Facts, Important 10's Facts, Missing Number, Missing Operator, Rounding, Squares. Estimation Preparation- Doubling/Halving, Rounding, Multiplication Brush-up, Converting and Reducing. Math Strategies- Multiplication and Division. Estimation- Estimating with Whole Numbers, Adding Multiple Numbers.