BODMAS

BODMAS stand for B – Brackets O – Powers D – Division M – Multiplication A – Addition S – Subtraction we carry out these operations in the order brackets, order (roots and powers), division, multiplications, addition, subtraction. Example: calculate We carry out the multiplication first: Example: Calculate We carry out the operation inside the […]

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Dividing in Certain Ratios

Three men – Alf, Bob and Cliff – have £150 to share between them for a job of work. Being all fair of mind they decide to divide the money in proportion to the work they have done. They decide therefore to share the money in the ratio 4:5:6. They draw up the following table. […]

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Stem and Leaf Diagrams

A stem and leaf diagram is a compact way to display a list is a way that enables the shape of the list to be quickly perceived. For example we start with a list of numbers that represent the heights of 50 adults men: 190, 149, 150, 172, 183, 190, 178, 189, 179, 176, 164, […]

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Multiplying Decimal Numbers

If you can multiply numbers you can multiply decimals. It is only a matter of, once you have multiplied two numbers, of counting the number of decimal places. Example: 0.3*0.2 3*2=6 0.1 has one number after the decimal point and 0.2 has one number after the decimal point so there are two numbers after the […]

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