Adding and Subtracting Decimals with Many Non-Zero Digits

Adding and Subtracting Decimals with Many Non-Zero Digits Use vertical calculations to add and subtract decimals, including calculations that require writing additional zeros and composing or decomposing a base-ten unit. Let's practice adding and subtracting decimals. Learning targets: students can solve problems that involve addition and subtraction of decimals. Some students might find it helpful to use graph paper to help them align the digits for vertical calculations.