Column Addition: 4-Digit (3 Addends)

Teaching Notes

Three addends at 4 digits requires tidy carries and comma placement.

Common Mistakes

• Comma in wrong place
• Forgetting to include carry in next column
• Misaligning place values.
• Forgetting to carry digits.
• Errors in basic facts.
• Adding carried digits twice.

Differentiation

Discussion Questions

• Why is place value critical here?
• How does regrouping work with thousands?
• When is this skill useful outside school?
• How can you check your addition?

Skill Cluster

Whole Number Operations

Estimated Time

13 minutes

Skills Practiced

Prerequisites

• 766
• Adding 3-Digit Numbers with Regrouping
• Place Value to 10,000
• Basic Addition Facts

Next Steps

• Adding 5-Digit Numbers (3 Addends)
• Column Subtraction with Regrouping
• Column Addition: Multi-Digit (3 Addends) - Set B
• Column Addition: 4-Digit (4 Addends) - Set A
• Column Subtraction: Multi-Digit with Regrouping