This number sense lesson focuses on subtracting money amounts. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students read the problem and set up the subtraction by lining up the decimals. Then, they find the difference of the money amounts by subtracting digits in each column (starting from the right) and writing in the decimal point and the dollar sign. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.