Corbett Maths
Negatives: Addition and Subtraction
There are no negatives in learning about negative numbers. Scholars review how to add and subtract integers by watching a short video. They first see how to use a number line to determine the sum or difference, then learn to apply...
Art of Problem Solving
Subtraction Problems
Subtraction does not work with the commutative property ... or does it? Confronted with a difficult problem, the narrator realizes that by writing the subtractions as adding a negative, he can rearrange the problem. Pupils learn that as...
Mathispower4u
Adding Integers
It's always nice to have two methods to count on. Young mathematicians learn to add integers by watching a short YouTube video. It covers addition using a number line and through the use of integer rules.