Visual representation of 0.4 of 0.8 using a 10x10 grid.

- The image represents the multiplication of two decimals: 0.4 and 0.8.
- The grid is a 10x10 square, representing one whole (1.0).
- The green section covers 4 rows (40 squares), representing 0.4.
- The blue section covers 8 columns (80 squares), representing 0.8.
- The overlapping region (green and blue) represents the product of 0.4 × 0.8.
- Counting the overlapping squares: 4 rows × 8 columns = 32 squares.
- Since the entire grid has 100 squares, 32 squares represent 32/100 = 0.32.
- Therefore, 0.4 of 0.8 equals 0.32.