09:41
Intro to Fractions
04:55
Commutative Property of Multiplication
09:16
Introduction to Division
04:27
Distributive Property of Multiplication
01:52
Multiplication and Arrays
05:02
Introduction to Multiplication
05:02
The Addition Algorithm and Chip Model
02:32
Make a Hundred: Making an Easier Problem to Add
03:52
Adding the Arrow Way
05:26
Make A Ten (2): Making an Easier Problem to Add
04:32
Compensation: Making an Easier Problem to Subtract
04:26
Skip-Counting
03:06
Skip-Counting Using a Number Line
02:49
Adding Like Units
01:44
Make a Ten
02:43
Subtracting Like Units
04:08
Take From Ten
07:09
Subtraction Using the Algorithm and Chip Model
06:16
Adding Using the Written Algorithm and Chip Model
05:39
Adding Using the Written Algorithm and Place Value Disks
03:56
Adding Using Number Bonds
04:56
Adding and Subtracting: The Arrow Way
04:34
Place Value and Money
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