[{"title": "Basic Multiplication", "content": "Calculate 4 × 5. This means 4 groups of 5, or 5 added 4 times.", "solution": "4 × 5 = 20"}, {"title": "Distributive Property", "content": "Calculate 25 × 5 using the distributive property. Break 25 into 20 + 5: (20 × 5) + (5 × 5) = 100 + 25.", "solution": "25 × 5 = 125"}]