Florida B.E.S.T. MA.K.NSO.3.2
The Standard
Add two one-digit whole numbers with sums from 0 to 10 and subtract using related facts with procedural reliability.
Florida B.E.S.T. Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students combine two small groups and find the total. They also take one part away from a total and use the matching addition fact to find what remains.
What Mastery Looks Like
- Students accurately solve addition problems with totals no greater than 10. They use a known addition fact to solve the two matching subtraction facts without guessing.
Common Misconceptions
- Students may count both groups incorrectly or recount the first group instead of counting on. They may confuse subtraction with addition or miss how a subtraction fact comes from the same three numbers.
How to Assess It
- Give students: 6 + 3 = __, 9 − 6 = __, and 9 − 3 = __. Ask them to solve and draw counters for one equation.
Lesson moves
Ways to Teach It
Give pairs two-color counters to build 4 and 5, combine them, then separate the total to show both related subtraction facts.
Show 7 = 3 + 4 and ask, “What subtraction facts use these same three numbers, and how do you know?”
Play a fact-family triangle game where students draw three number cards, place them correctly, and say the matching addition and subtraction facts.
Set up a snack problem: 8 crackers are on a plate, 3 are eaten, and students find how many remain.
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Printable MA.K.NSO.3.2 Worksheet
A ready-to-print activity worksheet aligned to MA.K.NSO.3.2, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- MA.3.NSO.2.4
Multiply two whole numbers from 0 to 12 and divide using related facts with procedural reliability.
- MA.K.AR.1
Represent and solve addition problems with sums between 0 and 10 and subtraction problems using related facts.
- MA.2.NSO.2.3
Add two whole numbers with sums up to 100 with procedural reliability. Subtract a whole number from a whole number, each no larger than 100, with procedural rel...
- MA.1.NSO.2.2
Add two whole numbers with sums from 0 to 20, and subtract using related facts with procedural reliability.
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