Decimal Fractions: Adding & Subtracting Whole Numbers, Mixed Number and Decimals - SEMiPRO Montessori-inspired Math help (4 pages + key):Adding and subtracting Decimal Fractions. These pages guide young mathematicians to:Practice adding & subtracting whole numbers, mixed number and decimal fractionsUse the Montessori Decimal Board and examples as your guide!Convert problems from linear format to standard formatUse domain-specific phrases and learn Math Terminology such as: Addend, sum, m