Florida B.E.S.T. MA.1.AR.2

Math1st Grade

B.E.S.T. Standard (Benchmark Cluster)

Develop an understanding of the relationship between addition and subtraction.

Florida B.E.S.T. Standards for Mathematics

Cluster contents

MA.1.AR.2 is a B.E.S.T. standard. These are the benchmarks under it.

Teacher's field guide

What Students Need to Do: Students connect addition and subtraction as opposite operations. They use the same total and two parts to write related equations and solve missing-number problems.
What Mastery Looks Like: Students use a known addition fact to solve a related subtraction problem, and vice versa. They correctly identify the total and the two parts in equations, drawings, and word problems.
Common Misconceptions: Students may think addition and subtraction facts are unrelated. They may reverse subtraction facts, claiming that 3 minus 7 equals 4 because 7 minus 3 equals 4. Some use the total as a part when writing a fact family.
How to Assess It: Give students 5 + 3 = 8. Ask them to write two related subtraction equations and draw a picture showing how all three equations connect.

Lesson moves

Give pairs eight counters, have them split the counters into two groups, then write two addition and two subtraction equations.
Ask, “How does 4 + 3 = 7 help you solve 7 minus 4?” Students explain with words and a drawing.
Play a fact-family triangle game where students use three number cards to say or write all related addition and subtraction facts.
Tell a story about six apples with two eaten, then connect 6 minus 2 and 4 plus 2 using counters.

Free download

$Preview of the MA.1.AR.2 printable worksheet$

A ready-to-print activity worksheet aligned to MA.1.AR.2, with an answer key for the teacher on its own page. No account needed.

PDF, US Letter, prints cleanly in black and white.

Keep exploring

Grade, subject, topic, and the complete cluster are prefilled. Create one free, no account needed.