Display Title
Math Example--Arithmetic--Adding and Subtracting with Regrouping--Example 4
Display Title
Math Example--Arithmetic--Adding and Subtracting with Regrouping--Example 4
Topic
Arithmetic
Description
Find the sum of 15 + 5. This example demonstrates regrouping: 15 + 5 = 20. The calculations highlight the importance of properly regrouping or borrowing when needed.
Arithmetic focuses on foundational arithmetic skills. The examples provide step-by-step solutions, helping students visualize the procedures for addition or subtraction involving regrouping.
Viewing multiple worked-out examples is essential for students to fully understand a concept. It allows them to see patterns and recognize the consistency of methods applied to solve similar problems.
Teacher’s Script: Let's look at this example: Find the sum of 15 + 5. Notice how we solve this by first focusing on the numbers in the ones place. Then we carry over or borrow when needed. This is a key step in mastering addition and subtraction with regrouping. Can you explain why the regrouping step was necessary here?
For a complete collection of math examples related to Arithmetic click on this link: Math Examples: Adding and Subtracting with Regrouping Collection.
Common Core Standards | CCSS.MATH.CONTENT.2.NBT.B.5 |
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Grade Range | 2 - 3 |
Curriculum Nodes |
Arithmetic • Addition • Addition Facts to 25 • Subtraction • Subtraction Facts to 25 |
Copyright Year | 2021 |
Keywords | addition, subtraction |