The mathematics notes investigate how to add and subtract decimals. Examples and practice problems with solutions are included.

Practice solving word problems by adding or subtracting decimal numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice adding and subtracting negative fractions, decimals, and percents. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice adding and subtracting rational numbers of different forms.

Practice solving equations in one step by adding or subtracting a number from both sides. These problems involve decimals and fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...