Florida B.E.S.T. MA.K.AR.1
B.E.S.T. Standard (Benchmark Cluster)
Represent and solve addition problems with sums between 0 and 10 and subtraction problems using related facts.
Florida B.E.S.T. Standards for Mathematics
Cluster contents
Benchmarks in This Standard
MA.K.AR.1 is a B.E.S.T. standard. These are the benchmarks under it.
- MA.K.AR.1.1
For any number from 1 to 9, find the number that makes 10 when added to the given number.
- MA.K.AR.1.2
Given a number from 0 to 10, find the different ways it can be represented as the sum of two numbers.
- MA.K.AR.1.3
Solve addition and subtraction real-world problems using objects, drawings or equations to represent the problem.
Teacher's field guide
What This Cluster Means
What Students Need to Do
- Students model joining and separating with objects, drawings, fingers, or equations. They find totals and missing parts within 10, then connect subtraction to known addition facts.
What Mastery Looks Like
- Students choose an operation that matches a joining or separating story. They use a model to solve accurately and explain how an addition fact helps with subtraction.
Common Misconceptions
- Students may treat every story as addition, reverse the numbers in subtraction, or count objects without matching the story action. They may not see that 3 + 5 = 8 helps solve 8 − 3.
How to Assess It
- Give students counters and ask: “Show 4 and 3 joining. Write the addition equation, then write two related subtraction equations.”
Lesson moves
Ways to Teach It
Use two-color counters to build a total, separate it into parts, and record the matching addition and subtraction equations.
Ask, “Mia says 8 − 3 is related to 3 + 5. Is she right?” Have students draw and explain.
Play Fact Family Match by pairing addition and subtraction equation cards that use the same three numbers.
Place seven toy animals in a pen, remove two, and have students find the remainder and name the related addition fact.
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Printable MA.K.AR.1 Worksheet

A ready-to-print activity worksheet aligned to MA.K.AR.1, with an answer key for the teacher on its own page. No account needed.
PDF, US Letter, prints cleanly in black and white.
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Related Standards
- MA.2.AR.1
Solve addition problems with sums between 0 and 100 and related subtraction problems.
- MA.1.AR.1
Solve addition problems with sums between 0 and 20 and subtraction problems using related facts.
- MA.K.NSO.3.1
Explore addition of two whole numbers from 0 to 10, and related subtraction facts.
- MA.1.NSO.2.1
Recall addition facts with sums to 10 and related subtraction facts with automaticity.
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