Your device is currently offline. You can view downloaded files in My Downloads.

Lesson Plan

3. Three-digit addition and subtraction without regrouping (A)

teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Content.2.NBT.B.7 http://corestandards.org/Math/Content/2/NBT/B/7
teaches Common Core State Standards CCSS.Math.Content.2.NBT.B.9 http://corestandards.org/Math/Content/2/NBT/B/9
teaches Common Core State Standards CCSS.Math.Practice.MP8 http://corestandards.org/Math/Practice/MP8
Quick Assign

You have saved this lesson!

Here's where you can access your saved items.

Dismiss

Card of

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson.

Lesson objective: Add and subtract three-digit numbers without regrouping.

This lesson provides an opportunity for students to apply their knowledge and understanding of three-digit addition and subtraction without regrouping to a mathematical situation. Students are asked to check the correctness of Brian's answers to a three-digit addition and subtraction problem by applying other strategies or tools.

Key Concept students will use: Addition and subtraction strategies used with two-digit numbers can be used with three-digit numbers (no regrouping).

Skills students will use:

  • Add numbers within 1,000 using knowledge of place value and properties of operations
  • Add numbers within 100 using knowledge of place value (Grade 2, Unit 1)
  • Represent three-digit numbers in different but equivalent ways (Grade 2, Unit 6)

Students engage in Mathematical Practice 1 (Make sense of problems and persevere in solving them) as they apply different strategies to solve three-digit addition and subtraction problems, including the use of multiple tools such as base ten blocks and number lines.

Key vocabulary: 

  • base ten blocks
  • decompose
  • digit
  • hundreds
  • number line
  • ones
  • place value
  • tens

 

Related content

Appears in

Applying strategies to add and subtract within 1,000

Provide feedback