# Maths term 1

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🇬🇧 | 🇬🇧 |

Move to the left depending on how many dp were are rounding too. | Rounding decimals |

Divide the top and bottom by a certain number that is the same for both | Simplified fractions |

How many times the bottom goes into the top number is the whole number and then the amount left over is the numerator. The denominator stays the same. | Improper fractions into mixed numbers |

The denominator stays the same. the whole number x the denominator + the numerator is the final numerator | Mixed numbers into improper fractions |

Change to improper | Mixed number + Mixed number method |

Step 1. change to improper fraction if needed 2. multiply the top and bottom | Multiply fractions method |

Step 1. first fraction remains the same 2. flip second fraction upside-down 3. change divide to multiply | Divide fractions method |

Step 1. turn percentage into decimal (divide by 100) 2. multiply your amount by that decimal | Percentage of of an amount method |

Multiply your amount by (1+ whatever the percentage is as a decimal). | Percentage increase |

Multiply your amount by (1- whatever your percentage is as a decimal). | Percentage decrease |

Calculate 2/5 of 20 The word 'of' means multiply | Fraction of an amount method |

The place value of the last digit is what the number is over e.g 0.8 = 8/10 0.14 = 14/100 and then simplify | Decimals into fractions |

Numerator ÷ Denominator | Fractions into decimals |

Write the percentage over 100 and the simplify | Percentages into fractions |

Multiply by 100 and then add the percentage symbol on the end | Decimals into percentages |

Divide by 100 | Percentages into decimals |

Change to decimal and then multiply by 100% | Fractions into percentages |

New value- old value ÷ old value x 100% | Percentage change |

++ = + +- = - -+ = - -- = + | Integers + and - rules |

Every two negatives equal to positive | When multiplying and dividing Negative numbers |

Divide each part by the highest common factor. e.g 7:21 7 is the highest common factor | Simplifying ratios |

Index form | 3⁶ is written in... |

Cube root of 64 3, shift, ^, 64 | Cube roots on calculator |

5x4x3x2x1 | The factorial 5! is written out as... |