Big Hits: Multiplying by 1-Digit Numbers

Math, Unit 5, Topic 5.1. At the ballpark, students build equal sets of base-ten blocks (3 × 124), trade 10 ones for a ten, draw area models with partial products (6 × 47 = 240 + 42), and move from partial products to the standard multiplication algorithm (4 × 156 = 624).