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Fact family

52 bytes added, 22:40, 30 August 2013
adding categories to uncategorized page
A '''fact family''' is a group of arithmetic facts which use the same numbers. For example, 7 - 3 = 4 and 7 - 4 = 3 and 3 + 4 = 7 and 4 + 3 = 7. Students in primary school are told to memorize these related facts together.
 
 
[[Category: Education]]
[[Category: Mathematics]]
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