#### What are Symbols Used for In Math?

Mathematical symbols can be difficult and can form a barrier to learning mathematical concepts. Now, different symbols are used in mathematics and hold significant meaning as well. Let us list down a few of those symbols for you.

Operation |
Symbol |

addition | + |

subtraction | - |

multiplication | x, * |

division | ÷, / |

grouping values | [ ], ( ) |

sets | { } |

pi | π |

infinity | ∞ |

equal to | = |

approximately equal | ≅ |

not equal to | ≠ |

less than | <, ≤ |

greater than | >, ≥ |

radical symbol | √ |

degrees | ° |

###### Making Change For A Dollar Riddle

How many ways are there to make change for a dollar? Use the key below to determine the answer.

###### Eating Insects

Use the key to determine how many insects you will eat in your lifetime. Not on purpose...

###### The Funky Headphone Riddle

Wearing headphones for just an hour could increase the number of bacteria in your ear by how many times?

###### The Ratty Riddle

Rats multiply very quickly. In eighteen months, how many descendants could two rats have?