[{"title": "Basic Multiplication", "content": "Calculate 9 × 11. This means 9 groups of 11, or 11 added 9 times.", "solution": "9 × 11 = 99"}, {"title": "Distributive Property", "content": "Calculate 19 × 2 using the distributive property. Break 19 into 10 + 9: (10 × 2) + (9 × 2) = 20 + 18.", "solution": "19 × 2 = 38"}]