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….

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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…

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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…

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