## Elementary mathematics: concepts, properties, and operations |

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### Contents

Some important mathematics ideas | 1 |

Review of important ideas | 8 |

Properties of addition | 14 |

Copyright | |

18 other sections not shown

### Common terms and phrases

angle array basic multiplication facts Betty Bill bought bushels candy centimeters chart Check the products cises congruent cookies different names dividing twice division question dozen drawing empty set equation estimate example exer expanded form figure find the answer Find the missing Find the products Find the quotients Find the sums foot lengths gallons Give hundreds identity element inches Jane leftover length line segment Look marbles marked number line mean miles missing addends number question number sentence ordered pair package partial products partial quotient pecks piece polygon pounds products in exercise quarts regular polygons renamed represent Review ribbon score shown simple closed curve simpler name subtraction Suppose Teacher tence tens tion triangle unit weighed whole number word problem write wrote yards