Children may find the easiest way to work this out is by using the column method, where all the numbers are placed in a column, one on top of the other. It is vital that they remember that the decimal points of each number must line up. Once they’ve worked out using pencil and paper, let them check on a calculator as using decimals accurately on a calculator is an important real life skill too.
You do not necessarily need to purchase a specific curriculum for kindergarten math. To recognize shapes and practice matching, you can either use ready-made worksheets or workbooks, or make some of your own.