Add and Subtract Hundredths and Thousandths without Regrouping: Horizontal Worksheet

Students understand that when adding or subtracting decimals, it is important to align the decimal points and use zeros as placeholders. In this worksheet, they find the answer without regrouping. This worksheet is about practicing with the horizontal format in which numbers are written side by side. To develop flexibility with numbers and operations, students need to have enough practice in this format and not just rely on the vertical/column method.