This learning resource focuses on aligning multi-digit decimal numbers for addition and subtraction operations. Students will understand the importance of lining up decimal points vertically to ensure digits in respective place values—ones with ones, tenths with tenths, and so on—are correctly matched. The resource provides a structured strategy for adding and subtracting decimals, including the use of placeholder zeros where necessary. Through worked examples and guided practice problems, students learn how to accurately perform decimal operations while reinforcing their understanding of place value.