In this Grade 4 lesson from enVision Mathematics Chapter 2, students learn how to add greater multi-digit whole numbers using the standard algorithm, applying place value concepts and regrouping across ones, tens, hundreds, thousands, and ten-thousands places. Students also practice using estimation to check whether their answers are reasonable. The lesson builds fluency with adding numbers up to the hundred-thousands place, including problems with three addends.
Section 1
Multi-digit Addition with Place Value Alignment
When adding multi-digit whole numbers, align digits by place value: ones under ones, tens under tens, hundreds under hundreds, etc.
The sum is calculated column by column from right to left, carrying over when a column sum exceeds 9.
Section 2
Adding Three or More Numbers
When adding three or more numbers, if the sum of the digits in a column is a two-digit number (e.g., 24), write the ones digit (4) in the sum and regroup (carry) the tens digit (2) to the next place value column.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter
Expand to review the lesson summary and core properties.
Section 1
Multi-digit Addition with Place Value Alignment
When adding multi-digit whole numbers, align digits by place value: ones under ones, tens under tens, hundreds under hundreds, etc.
The sum is calculated column by column from right to left, carrying over when a column sum exceeds 9.
Section 2
Adding Three or More Numbers
When adding three or more numbers, if the sum of the digits in a column is a two-digit number (e.g., 24), write the ones digit (4) in the sum and regroup (carry) the tens digit (2) to the next place value column.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter