How Do You Subtract a Negative Number from a Positive Number?

Students add and subtract integers. In this algebra lesson, students discuss number sense as they sort numbers in the correct order. They analyze and label numbers differentiating between rational and irrational numbers.

Guiding viewers through adding and subtracting numbers, this video includes many tips to help new learners internalize the concept of a number line. It clarifies the relationship between positive and negative numbers, including the...

This video on changing improper fractions to mixed numbers would nicely compliment the Khan Academy video on writing mixed numbers as improper fractions. Sal first shows students how to convert improper fractions. Then, he uses drawings...

This video shows how to add, subtract, and simplify fractions using a pie graph and an infinite blackboard. Once he has established the rule, Sal throws the viewer a curve ball with a fraction subtraction problem that results in a...

Reinforce instruction on the least common denominator and subtracting rational expressions with this tutorial video. Learners can view this video in class or at home. Consider using this resource to supplement your lesson plan.

Reinforce instruction on the least common denominator and subtracting rational expressions with this tutorial video. Learners can view this video in class or at home. Consider using this resource to supplement your lesson plan.

Is zero positive or is it negative? Are all positive numbers to the right of zero on the number line? Are all negative numbers to the left of zero on the number line? Are all positive numbers greater than zero? Are all negative numbers...

Have your class watch this video to get a better understanding of adding and subtracting positive and negative numbers. In an easy to understand manner, the presenter explains how to add numbers, both negative and positive, using a...

Eliminate young mathematicians' confusion over performing operations with integers using this set of classroom displays. Providing learners with simple, easy-to-follow rules, this resource will have students fluently adding,...

This dreamy resource has little ones computing the change on the purchase of an ice cream cone. Mia describes each step in two methods: subtraction of decimals and counting up from the sale price.