To subtract matrices, you need to make sure that the matrices have the same dimensions. If they do, match up the corresponding positions in each matrix and subtract away! This tutorial takes you through the steps of subtracting matrices.
Understand subtraction of rational numbers as adding the additive inverse, p - q = p + (-q). Show that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real-world contexts.