Search All »
Math
»
075 Operations Q&A

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# 075 Operations Q&A

### Arithmetic and Algebra

Question | Answer |
---|---|

What is the difference between an expression and an equation? | An equation involves an equal sign, an expression does not |

What does order of operations mean? | It tells us which operation must be done first |

What is the order of operations? | Division -> multiplication -> subtraction -> addition |

Evaluate the expression (20 - 13) x 5 | 7 x 5 = 35; Answer = 35 |

Evaluate the expression n ÷ 2 - 3, when n = 6 | (6 ÷ 2) - 3 = (3) - 3 = 0; Answer = 0 |

Which is an example of an equation: 10 + x or 12 - 3 = x? | 12 - 3 = x. (This is can be read as "The difference between 12 and 3 is x") |

"... more than ..." or "... greater than..." means: | It means to add to a given number, value, symbol or term |

"... less than ..." or "... smaller than..." or "... fewer than ..." means: | It means to subtract from a given number, value, symbol or term |

"... twice as many ..." or "... double..." or "... two times the number of..." means: | It means double or two times the amount |

"... half of ..." or "... half as many as..." means: | It means to divide a value, number, symbol or term by 2 |

"... half of n" or "... half as many as n" means: | It means to divide n by 2 |

Created by:
Mindful_Pumpkin