How do you do decimal grid math for 4th graders?

To teach decimal grid math to 4th graders, start by introducing them to a grid that represents tenths and hundredths, where each small square equals 0.01. Use colored squares to visually demonstrate how decimals work, such as showing that 0.25 can be represented by filling 25 out of 100 squares. Encourage students to practice adding and subtracting decimals by counting the filled squares and converting them back to decimal form. Reinforce their understanding by incorporating real-life examples, like money, to make the concept relatable.