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Multiplying: 4 digits times 1 digit (with carrying) | Arithmetic | Khan Academy
By Khan Academy
This is getting fun! We're now multiplying FOUR digits times one digit. Remember to carry!
One-step equations with multiplication and division
By Khan Academy
Let's get a conceptual understanding of why one needs to divide both sides of an equation to solve for a variable.
Dependent probability
By Khan Academy
It's important to practice these probability problems as they get more complex eventually. Take a stab on this one...with our help, of course.
One-step equations with multiplication and division
By Khan Academy
Let's get a conceptual understanding of why one needs to divide both sides of an equation to solve for a variable.
Probability -Flipping a Coin (Part 2)
By Khan Academy
The probability of getting 7 tails in a row is 1/128. How come? We find the probability for EACH tails first. Any particular outcome is 1 out of 128 of the total number of outcomes. What's the probability of getting EXACTLY one heads? Watch the instructor explain starting at 2:20.