Math Mammoth
Math Mammoth: Number Rainbow and Fact Families With 12
Teaches strategies for learning the addition and subtraction facts for 12 using a number rainbow. Students are then presented with a subtraction facts drill where they practice along to the video. [6:40]
Math Mammoth
Math Mammoth: Number Rainbow and Fact Families With 14
Teaches strategies for learning the subtraction facts for 14, as well as pairs of numbers that add up to 14. Students are then presented with a subtraction facts drill where they practice along to the video. [4:14]
Khan Academy
Khan Academy: Adding Multi Digit Numbers: 48,029+233,930
Add 48,029+233,930 using the standard algorithm.
Khan Academy
Khan Academy: Relate Place Value to Standard Algorithm for Multi Digit Addition
Transition from a place value chart to standard algorithm when adding multi-digit numbers.
PBS
Pbs: Odd Squad: To Catch a Double
Learn about doubling numbers with the Odd Squad. While babysitting the doubled Debbies, Otto discovers something that might help Olive crack the case and find the missing double.
Sophia Learning
Sophia: Multiplying by Five: Lesson 10
This lesson demonstrates multiplication with the number 5. It is 10 of 12 in the series titled "Multiplying by Five."
Sophia Learning
Sophia: Multiplying by Five: Lesson 1
This lesson demonstrates multiplication with the number 5. It is 1 of 12 in the series titled "Multiplying by Five."
Khan Academy
Khan Academy: Add and Subtract: Pieces of Fruit
Demonstrates how to add and subtract pieces of fruit using the numbers 5 and 3. [2:17]