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Lesson: Integers

After you watch the lesson above, try this practice problem
Which of the following does not result in an integer?

Lesson: Consecutive Numbers

After you watch the lesson above, try this practice problem
Two siblings are a year apart in age. If one sibling is x years old, how can we represent the older sibling's age in terms of x?
Try this example:There are 5 rows of chairs in a small theater. The first row has n chairs and each row has two more chairs than the one before it. How can we represent the number of chairs in the fifth row in terms of n?

Lesson: Positive & Negative Number Rules

After you watch the lesson above, try this practice problem
If a is a positive number and b is a negative number, which of the following may be positive?

Lesson: Even & Odd Number Rules

After you watch the lesson above, try this practice problem
If n is an even integer, which of the following must be odd?