Place Value and Multi-Digit Operations · Number & Operations

Algorithms and Fluency

Fluently adding and subtracting multi digit whole numbers using the standard algorithm.

Key Questions

  1. 1What is happening to the total value of a number when we regroup or carry a digit?
  2. 2How can we use inverse operations to prove the accuracy of our calculations?
  3. 3Why does the standard algorithm work more efficiently than expanded form for very large numbers?

Common Core State Standards

CCSS.Math.Content.4.NBT.B.4CCSS.Math.Content.4.NBT.B.5
Grade: 4th Grade
Subject: Mathematics
Unit: Place Value and Multi-Digit Operations
Period: Number & Operations

Suggested Methodologies

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