How to Use Expanded Form to Multiply One-Digit Numbers By 3-digit or 4-digit Numbers
Expanded form is a great way to simplify multiplication problems, especially when you’re multiplying one-digit numbers with larger numbers.
How to Use Partial Products to Multiply One-Digit Numbers By Multi-digit Numbers
Partial products are the smaller products you get by breaking a number into its place values. To multiply 4 × 123, multiply 4 by 100, 20 and 3, then add: 400 + 80 + 12 = 492.
