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In math, a reality family can be characterized as a team of math facts or equations produced using the same set of numbers. The fact family shows the relationships in between the three numbers involved.

You are watching: Fact family for 3 7 21

In an addition and subtraction reality family, there are four enhancement and individually sentences developed using three numbers.

Here, because that instance, a fact family has actually been developed using the number 9,4 and also 5 whereby 4 and also 5 room parts, when 9 is the whole.

Similarly, in a multiplication and department fact family, there are multiplication and department sentences produced using 3 numbers.

Here, for instance, a fact family has been developed using the numbers 12, 4 and 3 whereby 4 and also 3 space parts, if 12 is the whole.

See more: How To Know When To Use The Quadratic Formula Explained, When Do You Use The Quadratic Formula |

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## Let"s perform it!

Instead of handing out math worksheets on reality family, beat a game with your children using jelly beans. Give jelly beans in a collection of 3 numbers, say 2, 3 and also 5. Ask lock to create an addition and subtraction reality family using the jelly beans. Repeat for multiplication and division fact family.