Add 5-Digit and 3-Digit Numbers with Regrouping: Missing Numbers Worksheet

Give your little one the opportunity to dive deeper into addition with this add 5-digit and 3-digit numbers with regrouping worksheet. This worksheet is about practicing with the horizontal format in which numbers are written side by side. To develop flexibility with numbers and operations, students need to have enough practice in this format and not just rely on the vertical/column method.