Math Example--Arithmetic--Two-Digit Sums to 20 (With Regrouping)--Example 20

Topic

Addition

Description

Example 20 demonstrates adding 8 + 7 using a number line. Counting steps leads to 15, and regrouping results in carrying 1 to the tens place and placing 5 in the ones place, making the answer 15. Example 20. Find the sum: 8 + 7. Solution: Add digits in the ones place using the number line. Use regrouping to put 5 in the ones place and carry 1 to the tens place. shows this in practice.

Addition, specifically two-digit sums with regrouping, is foundational for building strong numerical skills. The examples provided in this collection illustrate various ways to solve two-digit addition problems, allowing students to visualize the process of regrouping and to understand each step more deeply.

By examining multiple examples, students gain exposure to a variety of problems, helping them identify patterns and reinforce their understanding. This collection supports students by offering numerous worked-out examples to solidify their grasp on two-digit addition with regrouping.

Teacher’s Script: Today, we are going to look at an example of adding two-digit numbers with regrouping. In this problem, Example 20 demonstrates adding 8 + 7 using a number line. Counting steps leads to 15, and regrouping results in carrying 1 to the tens place and placing 5 in the ones place, making the answer 15. Notice how we carry over any values greater than 9 to the next column, reinforcing our understanding of place value.

For a complete collection of math examples related to Addition click on this link: Math Examples: Adding Two-Digit Numbers with Regrouping Collection.