## A Brief Course in ArithmeticA useful study tool and guide for anyone interesting in sharpening their arithmetic skills. |

### Contents

WHOLE NUMBERS | |

1A Definition | 1 |

1B Addition of Whole Numbers | 11 |

1C Subtraction of Whole Numbers | 17 |

1D Multiplication of Whole Numbers | 30 |

1E Division of Whole Numbers | 41 |

1F Rounding and Combining Operations | 53 |

FRACTIONS | 65 |

III DECIMALS | 109 |

3A Definition | 111 |

3B Addition and Subtraction of Decimals | 121 |

3C Multiplication and Division of Decimals | 127 |

3D Ratio and Proportion | 135 |

3E Conversion | 145 |

PERCENTAGE | 157 |

4A Definition | 159 |

2A Definition | 67 |

2B Addition and Subtraction of Fractions | 77 |

2C Multiplication and Division of Fractions | 87 |

2D Mixed Numbers | 95 |

METRIC SYSTEM | 175 |

Answers | 187 |

Index | 193 |

### Common terms and phrases

addition amount Answer average bill bought boxes called centimeters column combine common Convert cost cross cups Date Class decimal decimal places decimal point Definition denominator digit distance Divide dividend divisible divisor dollars earn equal equivalent Example Express feet Find five four fraction gallon grams hundred hundredths inches increase interest kilograms kilometers length liter MASTERY TEST means meters metric system miles million minutes mixed number Monday month move Multiply Name nearest nearest tenth operation original ounces paid percent percentage piece places population pounds pounds 8 ounces problems proportion purchased quotient ratios received Reduce remainder result Round salary seconds seven share sides sold Solution Step subtract SUPPLEMENTAL EXERCISE SET temperature tens thousand thousandths traveled trip wanted week weighed whole numbers Write yard zeros