Each problem shows a fact family triangle with three numbers. Students write all four related equations - two addition and two subtraction. This format helps students see how the same three numbers create a complete fact family.
Use as an introduction to fact families during a unit on addition and subtraction relationships. The small numbers (within 5) make this ideal for Kindergarteners or early 1st graders who are just learning the concept.
Start by showing your child how three numbers can make four math facts. Use small objects like blocks or coins to demonstrate - for example, 2 + 3 = 5, 3 + 2 = 5, 5 - 2 = 3, 5 - 3 = 2.
This worksheet supports the following Common Core State Standards for Mathematics:
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Practice writing all four facts in each fact family with sums within 5. Students complete addition and subtraction equations using the three numbers in each triangle.
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