Integers – Basic understanding
When you watch this video, you will see that integers can be thought of moving up and down in an elevator When moving up, the sign will be positive and when moving down, the sign will be negative. Once you…
ClassroomEducation
Maths Education | Wiskundeonderrig
ClassroomEducation
Maths Education | Wiskundeonderrig
Category Maths in English
Rate
Rate is the comparison of 2 quantities of different kind. If we buy chicken fillets, as an example, at a rate of R54/kg, it means that we have to pay R54 for 1 kg of chicken fillets. Now, if we…
Increase and decrease in a given ratio
When increasing quantities in a given ratio, such as increasing R16 in the ratio 5:4, we use the method of dividing the given quantity by the smaller value in the ratio, in this case the 4, and then multiplying with…
Ratio and Rate – Sharing in given a ratio
Ratio and rate are very similar where ratio is the comparison of two or more quantities of the same kind and rate is the comparison of two quantities of different kinds. An example of rate is R49/100g (R49 per 100…
Financial Mathematics – Exchange Rate
As rate is the comparison of two quantities of a different kind, we can use the principles of rate to determine exchange rate. Exchange rate is when you exchange one country’s money with another country’s money. E.g. If we have…
The basics of profit, loss and VAT
When you sell something for a higher price than you bought it for, you are making a profit. However, when you are selling something for a lower price than you bought it for, you are making a loss. In other…
