maths is difficult |
6 |
Google Autocomplete, Yahoo Questions |

math is difficult for students |
1 |
Google Autocomplete |

math is difficult |
6 |
Google Autocomplete, Answers.com Questions, Quora Questions |

math is difficult for some |
1 |
Google Autocomplete |

math is difficult for some and easy for others |
2 |
Google Autocomplete |

math is difficult for some students |
1 |
Google Autocomplete |

math is difficult for me |
1 |
Google Autocomplete |

maths is difficult to learn |
1 |
Google Autocomplete |

math is difficult to understand |
1 |
Google Autocomplete |

math is difficult to learn |
1 |
Google Autocomplete |

math is so difficult |
1 |
Answers.com Questions |

math is so difficult to understand |
1 |
Answers.com Questions |

math is so fucking difficult |
1 |
Reddit Questions |

math is so difficult to learn |
1 |
Reddit Questions |