Instructional Video3:16
Curated Video

Addition of Multi-Digit Whole Numbers (Part 2)

3rd - 5th
Addition of Multi-Digit Whole Numbers.
Instructional Video2:57
Curated Video

Addition of Multi-Digit Whole Numbers (Part 1)

3rd - 5th
Addition of Multi-Digit Whole Numbers.
Instructional Video2:40
Curated Video

Addition Properties (Part 2)

3rd - 5th
Addition properties.
Instructional Video3:06
Curated Video

Addition Properties (Part 1)

3rd - 5th
Addition properties.
Instructional Video
Khan Academy

Khan Academy: Probability: Addition Rule for Probability

9th - 10th Standards
Video defining the addition rule for probability, including finding the probability of mutually exclusive events. [10:43]
Instructional Video
Sophia Learning

Sophia: Either/or Probability for Overlapping Events: Lesson 1

9th - 10th Standards
This lesson will explain the general addition rule for probability. It is 1 of 3 in the series titled "Either/Or Probability for Overlapping Events." [8:12]
Instructional Video
Khan Academy

Khan Academy: Probability: Probability With Playing Cards and Venn Diagrams

9th - 10th Standards
Video lesson containing probability examples with playing cards. Venn diagram is used to show the sample space for an example that uses the addition rule. [10:02]
Instructional Video
Khan Academy

Khan Academy: Addition Rule for Probability

9th - 10th Standards
This video, from Khan Academy, explains addition rule of probability for both dependent and independent events by solving an example (using Venn diagrams).
Instructional Video
Crash Course

Crash Course Statistics #13: Probability: Rules and Patterns

9th - 10th Standards
This video is an introduction to probability. You will learn about how the addition (OR) rule, the multiplication (AND) rule, and conditional probabilities help us figure out the likelihood of sequences of events happening. [12:00]
Instructional Video
Sophia Learning

Sophia: Either/or Probability for Non Overlapping Events: Lesson 1

9th - 10th Standards
This lesson will explain the rule for finding the probability of at least one of two or more non-overlapping events happening. It is 1 of 3 in the series titled "Either/Or Probability for Non-Overlapping Events." Includes short quiz. [5:42]
Instructional Video
Sophia Learning

Sophia: Either/or Probability for Overlapping Events: Lesson 3

9th - 10th Standards
This lesson will explain the general addition rule for probability. It is 3 of 4 in the series titled "Either/Or Probability for Overlapping Events." [5:08]
Instructional Video
Sophia Learning

Sophia: Either/or Probability for Non Overlapping Events: Lesson 4

9th - 10th Standards
This lesson will explain the rule for finding the probability of at least one of two or more non-overlapping events happening. It is 4 of 4 in the series titled "Either/Or Probability for Non-Overlapping Events." [4:33]
Instructional Video
Sophia Learning

Sophia: Either/or Probability for Overlapping Events: Lesson 4

9th - 10th Standards
This lesson will explain the general addition rule for probability. It is 4 of 4 in the series titled "Either/Or Probability for Overlapping Events." [6:57]
Instructional Video
Sophia Learning

Sophia: Either/or Probability for Non Overlapping Events: Lesson 2

9th - 10th Standards
This lesson will explain the rule for finding the probability of at least one of two or more non-overlapping events happening. Lesson 2 of 4. Includes short quiz. [3:16]