Addition Tool

This tool is used to demonstrate multi-digit addition. Students add up to 4 or 6 place values, with or without regrouping, starting with models and progressing to the procedure.

After watching the video, click on “Try the Tool" and learn more about multi-digit addition.

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Concepts to Procedures Tools

Identify Fractions

Compare Fractions

Add Fractions with Common Denominators

Subtract Fractions with Common Denominators

Making Equivalent Fractions

Multiply Fractions

Making Equivalent Fractions with
Word Sentences

Common Denominators

Adding Fractions with
Uncommon Denominators

Subtract Fractions with
Uncommon Denominators

Dividing Fractions
Partitive

Dividing Fractions
Measurement

Higher Order Thinking Tools

Place Fractions
On a Number Line

Estimate Fractions
With Benchmarks

Unitize Fractions
Using Pattern Breaks

Unitize Fractions
on a Grid

Grade 3

Multiplication

Measurement Division

Commutative Property of Multiplication

Distributive Property

Equal Shares Division

Grade 4

Open Array Multiplication

Open Array Division

Grade 5

Open Array Decimal Multiplication

Open Array Decimal Division

Order of Operations

Grades 3 – 5

Place Value Models

Whole Numbers and Decimals on a Number Line

Addition

Subtraction