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Subtraction

3rd Grade

Alabama Course of Study Standards: 11

Use various strategies to add and subtract fluently within 1000.

Common Core State Standards: Math.3.NBT.2 or 3.NBT.2

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Georgia Standards of Excellence (GSE): 3.PAR.2.1

Fluently add and subtract within 1000 to solve problems.

North Carolina - Standard Course of Study: 3.NBT.2

Add and subtract whole numbers up to and including 1,000.
  • Use estimation strategies to assess reasonableness of answers.
  • Model and explain how the relationship between addition and subtraction can be applied to solve addition and subtraction problems.
  • Use expanded form to decompose numbers and then find sums and differences.

New York State Next Generation Learning Standards: 3.NBT.2

Fluently add and subtract within 1,000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Notes: Students should be taught to use strategies and algorithms based on place value, properties of operations, and the relationship between addition and subtraction; however, when solving any problem, students can choose any strategy.
A range of algorithms may be used.

Tennessee Academic Standards: 3.NBT.2

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Wisconsin Academic Standards: 3.NBT.2

Flexibly and efficiently add and subtract within 1,000 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Pennsylvania Core Standards: CC.2.3.B.1

Apply place-value understanding and properties of operations to perform multi-digit arithmetic.

Pennsylvania Core Standards: M03.A-T.1.2

Add two- and three-digit whole numbers (limit sums from 100 through 1,000) and/or subtract two- and three-digit numbers from three-digit whole numbers.

Florida - Benchmarks for Excellent Student Thinking: MA.3.2.1

Add and subtract multi-digit whole numbers including using a standard algorithm with procedural fluency.

3rd Grade Math - Subtraction Lesson
 
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