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### 8 Cards in this Set

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 addition expression a mathematical expression that contains only numbers and a plus sign (+). Ex. 2+2+2+2+2 factor One of two or more numbers that are multiplied to give a specific product. Ex. 3x4 are each a factor factor pair Two numbers that are multiplied to give a specific product. Ex. 5x8= missing factor An unknown factor in multiplication. Ex. 2x__=8 multiplication A mathematical operation where a number is added to itself a number of times. Ex. 4+4+4+4+4=20 5x4=20 multiplication sentence An equation that involves multiplication. product The answer in multiplication. times tables Multiplication facts that have been organized in a table.