3rd Grade Math Expanded Form Worksheets - Kiddy Math 1. Aims Practice Worksheet Expanded Notation, third grade 2. Write a 4-digit number in expanded form. - 3. Expanded Form 4. Expanded Notation Worksheet - 5. Please log in to download the printable version of this ... 6. Writing numbers in expanded form - 7. Math Mammoth Light Blue Grade 3-B 8. Mathematics Florida Standards (MAFS) Grade 3