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

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### Contents

WHOLE NUMBERS | 1 |

1A Definition | 3 |

1B Addition of Whole Numbers | 14 |

1C Subtraction of Whole Numbers | 21 |

1D Multiplication of Whole Numbers | 36 |

1E Division of Whole Numbers | 47 |

1F Rounding and Combining Operations | 59 |

FRACTIONS | 71 |

III DECIMALS | 117 |

3A Definition | 119 |

3B Addition and Subtraction of Decimals | 129 |

3C Multiplication and Division of Decimals | 135 |

3D Ratio and Proportion | 145 |

3E Conversion | 155 |

PERCENTAGE | 167 |

4A Definition | 169 |

### Common terms and phrases

20 minutes addends amount average bought cast out nines Celsius centimeters column being rounded COMMUTATIVE LAW cost Cross multiply cups decimal places decimal point denominator digit Divide both sides dividend divisor dollars earns equal Example expanded form Fahrenheit feet 1 inch Find the sum gallon grams hours 15 minutes hours on Tuesday improper fraction kilograms kilometers liter meters metric system miles per hour mixed number Monday move the decimal Multiplication and Division Multiply or divide Multiply the number Name Date Class nearest hundred nearest hundredth nearest tenth nearest thousand number in words number is divisible Numbers Name Date Percentage place-value Pleasant Dale pounds 8 ounces Prime factors problems proper fraction quotient remainder salary sold Solution standard form Step Stepl SUPPLEMENTAL EXERCISE SET Supplemental Mastery Test temperature thousand Answer thousandths tickets total number traveled trip Wednesday week weighed Write this number yard