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6 Cards in this Set
- Front
- Back
- 3rd side (hint)
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BIDMAS |
Bracket Indices Division Multiplication Addition Subtraction |
Order of calculation |
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Integers, Rational/Irrational Numbers, Square, Cubes and prime numbers |
Integers: WHOLE NUMBER Rational numbers: CAN BE WRITTEN AS FRACTIONS Irrational numbers: NEVER ENDING Squares: PRODUCT OF A NUMBER MULTIPLIED BY ITSELF Cubes: MULTIPLY TWICE BY ITSELF Prime numbers: CAN ON BE DIVIDING BY 1 AND ITSELF |
Give definitions |
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Multiples, Factors and Prime factors |
Multiples: Just the time tables Factors: all the numbers which divide into it, e.g. find all factors of 24: →1 × 24 →2 × 12 →3 × 8 →4 × 6 So the factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24 Prime factors: the factor tree |
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LCM and HCF |
'Lowest common multiple' is the smallest number that will divide by all the numbers in the question. E.g. find the lowest common multiple (LCM) of 12 and 15. 12= 12, 24, 36, 48, 60, 72... 15= 15, 30, 45, 60, 75... So the LCM of 12 and 15 is 60 'Highest common factor' is the biggest number that will divide into all the numbers in the question. E.g. find the HCF of 36, 54 and 72. After doing the factor tree do find the factors, list them: 36= 1, 2, 3, 4, 5, 6, 9, 12, 18, 36 54= 1, 2, 3, 6, 9, 18, 27, 54 72= 1, 2, 3, 4, 6, 8, 9, 12, 18, 24 So the HCF of 36, 54 and 72 is 18 |
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Fractions |
1) Simplifying- divide top and bottom by the same number, till they won't go further 2) Mixed numbers- 4 (2/3)→14/3 3) Multiplying- first cancel down, then multiply across, top and bottom: 2/3 × 1/3 → 2×1/3×3 = 2/9 4) Dividing- flip the second fraction then simply multiply 5) Common denominators- find the LCM of the denominators 6) Adding, Subtracting- make sure denominators are the same then do the action |
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Fraction→Decimal→Percentage |
Fraction→Decimal (Divide the fraction, 7/20 is 7÷20) Decimal→Percentage (× by 100) Percentage→Decimal (÷ by 100) Decimal→Fraction: 1) terminating decimals: n/10 2) recurring decimals... |
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