Visual demonstration of multiplying 0.3 and 0.4 using a hundredths grid, with the product shown as the overlapping shaded area.
A visual representation of multiplying decimals using a 10x10 grid, showing 0.3 (30 hundredths) shaded green, 0.4 (40 hundredths) shaded yellow, and the overlapping area (12 hundredths or 0.12) shaded in both colors.