Monomials part 1

Monomials A monomial is an algebraic expression that consists of only one term. (A term is a numerical or literal expression with its own sign.) For instance, 9x , -4a², and  3mpx³ are all monomials. The number in front of the variable is called the numerical coefficient. In -9xy, -9 is the coefficient. Adding and subtracting monomials To add or subtract monomials, followContinue reading “Monomials part 1”

Relative numbers (part 1)

Addition and subtraction We can count forwards: 1, 2, 3, 4, …and the question is: if you can go in one way, can you go the opposite way? The answer is: negative numbers Now we can go forwards and backwards as far as we want. + is the positive sign – Is the negative signContinue reading “Relative numbers (part 1)”