# Category: **Mathematics-upper primary**

### Ratios – upper primary

Ratio A ratio indicates how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then ... Read More

### Currency exchange

Currency exchange Banks and forex bureau buy and sell currencies of different cuntries at rate different rates according to their values. To make profit, they ... Read More

### Lowest Common Multiple (LCM) and Greatest Common Factor (GCF) – upper primary

Lowest common multiple (LCM) The Least Common Multiple (LCM) is also referred to as the Lowest Common Multiple (LCM) and Least Common Divisor (LCD). For ... Read More

### Trading, profit, loss, discount and shopping – upper primary

Trading A trader is a person who buys commodities and sells them at a profit. The profit is the difference between the selling and cost ... Read More

### Graphs and plotting – upper primary

Graphs The common graphs at primary level are the line graphs and bar graphs. Line graph A line graph is a type of chart used to show ... Read More