43000
Descrição
FlashCards por lydiarutherford, atualizado more than 1 year ago
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Criado por lydiarutherford
aproximadamente 11 anos atrás
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| Questão | Responda |
| Percentage Change: Change/original x 100 | percentage profit: profit/original x 100 |
| Finding Ratio Amounts: 1. Add up the parts 2. Find the amount for 'one' part 3. Multiply the answer of 2 by the amount of parts | finding x% of y: e.g. find 15% of £46 0.15 x 46 = £6.90 |
| Express x as a percentage of y e.g. Give 40p as a percentage of 3.34 (40 / 334) x 100 = 12% | percentages: amount x multiplier(to the power of the amount of years) |
| if you want to know an amount before a certain percentage was added you divide the amount by the multiplier of the amount we have at the start | How To Find Prime Numbers 1. It must end in either 1,3,7,9 2. It won't divide by any of the primes below it's square root |
| HCF - the biggest number that will divide by all the numbers in the question | LCM - the smallest number that will divide by all the numbers in the question |
| The Factors of a number are all the numbers that divide into it | The multiples of a number are simply it's timetable |
| irrational numbers: NEVER ENDING NON RECURRING DECIMAL (e.g. most square and cube roots) | rational numbers: positive or negative a fraction a terminating or recurring decimal |
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