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Math 6 Unit 5

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Math 6 Unit 5 - Illustrative Mathematics Online Resources


Grade 6 Illustrative Mathematics – Unit 5: Arithmetic in Base Ten

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Download PDF of Student Practice Work (Homework)

Unit Summary for Parents – PDF File

Lesson Topic

IM Lesson

Khan Academy Support Videos

Khan Academy Online Practice

Class Notes

Lesson Summary & Homework Help

1 – Using Decimals in a Shopping Context

Lesson 1


Adding & Subtracting Decimals Word Problems


 6.5.1 Morgan

2 – Using Diagrams to Represent addition and Subtraction

Lesson 2



Adding Decimals


Add Decimals Visually


Subtracting Decimals


Subtract Decimals Visually


 6.5.2 Morgan

3 – Adding and Subtracting Decimals with Few Non-Zero Digits

Lesson 3




 6.5.3 Morgan

4 – Adding and Subtracting Decimals with Many Non-Zero Digits

Lesson 4

Adding Decimals: 9.087+15.31


Adding Decimals: 0.822+5.65


Adding Three Decimals


Subtracting Decimals: 9.005 - 3.6


Subtracting Decimals: 39.1 - 0.794

Adding Decimals: Thousandths


Subtracting Decimals: Thousandths


Quiz 1


 6.5.4 Morgan

5 – Decimal Points in Products

Lesson 5




 6.5.5 Morgan

6 – Methods for Multiplying Decimals

Lesson 6

Intro to Multiplying Decimals


Developing Strategies for Multiplying Decimals



Multiplying Decimals (No Standard Algorithm)


Multiply Decimals Visually


Multiplying Decimals Like 4x0.6 (Standard Algorithm)


 6.5.6 Morgan

7 – Using Diagrams to Represent Multiplication

Lesson 7




 6.5.7 Morgan

8 – Calculating Products of Decimals

Lesson 8

Multiplying Decimals: Place Value


Multiplying Challenging Decimals

Multiplying Decimals like 2.45x3.6 (Standard Algorithm)


Multiplying Decimals Like 0.847x3.54 (Standard Algorithm)


Quiz 2


 6.5.8 Morgan

9 – Using the Partial Quotients Method

Lesson 9




 6.5.9 Morgan

10 – Using Long Division

Lesson 10

Dividing by 2-digits: 9815÷65


Dividing by 2-digits: 7182÷42

Division by 2-Digits


Multi-Digit Division


 6.5.10 Morgan

11 – Dividing Numbers that Result in Decimals

Lesson 11

Dividing Whole Numbers to Get a Decimal

Dividing Whole Numbers Like 56÷35 to get a Decimal


 6.5.11 Morgan

12 – Dividing Decimals by Whole Numbers

Lesson 12

Dividing a Decimal by a Whole Number



 6.5.12 Morgan

13 – Dividing Decimals by Decimals

Lesson 13

Dividing a Whole Number by a Decimal


Dividing Decimals with Hundredths


Dividing Decimals Completely


Long Division with Decimals


Dividing by a Multi-Digit Decimal

Dividing Decimals


Divide Decimals Visually


Dividing Decimals: Hundredths


Dividing Decimals: Thousandths


Quiz 3


 6.5.13 Morgan

14 – Using Operations on Decimals to solve Problems

Lesson 14




 6.5.14 Morgan

15 – Making Measuring Boxes

Lesson 15





Unit 5 Review



Khan Academy Unit 5Test



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