This completing fact families worksheet gives 1st graders six number houses to fill in—writing two addition and two subtraction facts for each set of numbers. Answer key included for fast, no-prep math practice.
This fact family worksheet gives 2nd graders three number bonds and twelve addition and subtraction facts to write. An answer key is included, so it is ready for no-prep math practice.
This multiplication division fact families worksheet has 3rd graders write two multiplication and two division facts for four number families, plus a word problem. An answer key is included.
This Thanksgiving fact families worksheet gives 1st grade students practice with addition and subtraction within 20. An answer key is included, so a holiday math review takes almost no prep.
This math graphic organizer worksheet helps 3rd graders map the three numbers of a fact family into all four multiplication and division sentences. Answer key included, so fact fluency practice takes no prep at all.
This fact families worksheet has 1st graders write twelve column addition and subtraction facts from three number families within 20. An answer key is included for quick, no-prep checking.
This 1.OA.4 common core worksheet gives 1st grade students three fact families and the four related addition and subtraction facts in each, plus an answer key, so subtraction starts to feel like addition read backwards.
This 3.OA.7 Common Core Worksheet gives 3rd graders four fact families to complete plus a market word problem. An answer key is included, so multiplication and division fluency practice needs no prep.
This christmas math fact families worksheet gives 1st Grade students three number triangles and twelve facts to write. An answer key is included, so holiday fact practice needs no prep.
The Valentine's Day Fact Families Worksheet gives 2nd grade students three number triangles with a missing number and four facts to finish, building addition and subtraction fluency together. Answer key included.
This St. Patrick's Day Fact Families Worksheet gives 1st grade students three triangles with a missing number and room to write all four related facts. An answer key is included, so it is ready to print and go.
Three numbers, four facts
A fact family is a group of related facts that use the same three numbers. With 3, 5 and 8, kids write 3 + 5 = 8, 5 + 3 = 8, 8 − 5 = 3, 8 − 3 = 5. First and 2nd graders use fact families to see that subtraction is just addition in reverse, so if you know 6 + 7 = 13, you also know 13 minus 7. In 3rd grade the same idea connects multiplication and division: 4 × 6 = 24 means 24 ÷ 6 = 4. Fact families cut the number of facts kids need to memorize in half.
Fact families are all about connections. These moves help kids see how the facts fit together.
Draw a house with the three numbers in the roof and four windows for the facts. Kids fill in each window, starting with the two addition facts. The house shape makes it clear that all four facts belong together.
Why it works: children learn more from words and pictures together than from words alone (Mayer, 2009).
Try it withFact Family WorksheetWorksheetsOpen it →Ask "If you know 9 + 4 = 13, what else do you know?" and let kids explain to a partner. Hearing classmates say "it is the same numbers, just backwards" helps everyone see the link between adding and subtracting.
Why it works: when kids say the precise math words, their understanding gets sharper, a recommendation of the U.S. Department of Education's elementary math guide.
Try it withSubtraction as an Unknown Addend ActivityActivitiesOpen it →Snap together a train of 5 red and 3 blue cubes. Kids say the addition facts, then break off the blues and the reds to show the subtraction facts. Moving real cubes makes each fact visible.
Why it works: the U.S. Department of Education's guide for teaching elementary math recommends moving from hands-on objects to drawings to numbers.
Try it withCompleting Fact Families WorksheetWorksheetsOpen it →Holidays, houses and missing numbers. Fact families can be lots of fun.
ActivitiesShow two numbers and a blank. Kids figure out the missing number and write all four facts.
Open Adding and Subtracting Unknown Numbers Activity →
WorksheetsComplete seasonal fact family houses for Thanksgiving or Valentine's Day.
Open Thanksgiving Fact Families Worksheet →
WorksheetsOlder kids build multiplication and division fact families from arrays.
Open Multiplication Division Fact Families Worksheet →Teacher favorites right now: Completing Fact Families Worksheet, Fact Family Worksheet and Multiplication Division Fact Families Worksheet.
A fact family is a set of related math facts that use the same three numbers. For example, 2, 6 and 8 make 2 + 6 = 8, 6 + 2 = 8, 8 - 6 = 2 and 8 - 2 = 6.
Addition and subtraction fact families are usually taught in 1st and 2nd grade. Multiplication and division fact families come in 3rd grade.
They show how addition and subtraction, or multiplication and division, are connected. Knowing one fact helps kids figure out the others quickly.
Most do, but doubles have only two. For example, 5, 5 and 10 make 5 + 5 = 10 and 10 - 5 = 5.
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