This video consists of calculations to practice the laws of exponents on a basic level. The order of operations plays an important part and Grade 7 learners, ages 12 and up, will benefit to practice the different calculations.
When multiplying or dividing fractions, we do NOT change the denominators to be common as in the case when adding or subtracting fractions. Multiplication and division of fractions are quite straightforward to do. When multiplying fractions, you can follow two methods. The first method is that you multiply all the numerators with each other and…
We use scientific notation when we write very big or very small numbers. Scientific notation is when we write one number followed by the decimal symbol (in South Africa that is a comma) and then the remaining parts of the number. However, as we actually ‘moved’ the decimal symbol of the given number we should…
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