NVR matrices practice set

For each grid, write the rule you spotted: 1. Row 1: 1 dot, 2 dots, 3 dots. Row 2: 2, 3, 4. Row 3: 3, 4, ? 2. Each row contains one circle, one square, one triangle. Row 3 has triangle, circle, ? 3. Shading moves one square clockwise in each step.