A fact family is a group of four numerical statements that represent the same meaning. Fact families contain three numbers and two mathematical operations. There are two types of fact families: (1) addition and subtraction fact families, and (2) multiplication and division fact families. For now, you just need the addition and subtraction fact family. For example, the numerals 3, 4, and 7 are related and form a fact family. Complete the Fact Family for 3, 4, and 7. find all of the x's
3 + x = x
4 + x = x
x - x = 3
x - x = 4