Category: Middle School

Ways of multiplying binomials

Here are three methods of multiplying binomials. Method 1 is known as the long method of multiplication. It’s the same procedure you did with numbers in primary school. It works with multiplying any two polynomials. Method 2 looks efficient but it only works for multiplying binomials. It’s also called the FOIL method for multiplying binomials.

Exponents and end digits of powers

Power is the product of multiplying a number by itself. We say 16 is the power of 2 to the 4th power. This can be written as 24= 16. The number 2 is called the base and 4, the number of times the base number is taken as factor is called the exponent. Here is

Proofs of sum of two even numbers is even

Problem Show that the sum of two even numbers is also an even number. Solutions 1. Good for 1/5 mark 2 + 4 = 6      6 + 8 = 14, 2+8 = 10      20 + 30 = 50 24 + 10 = 34. There’s no two even number I can think