Florida B.E.S.T. MA.7.NSO.2
B.E.S.T. Standard (Benchmark Cluster)
Add, subtract, multiply and divide rational numbers.
Florida B.E.S.T. Standards for Mathematics
Cluster contents
Benchmarks in This Standard
MA.7.NSO.2 is a B.E.S.T. standard. These are the benchmarks under it.
- MA.7.NSO.2.1
Solve mathematical problems using multi-step order of operations with rational numbers including grouping symbols, whole-number exponents and absolute value.
- MA.7.NSO.2.2
Add, subtract, multiply and divide rational numbers with procedural fluency.
- MA.7.NSO.2.3
Solve real-world problems involving any of the four operations with rational numbers.
Teacher's field guide
What This Cluster Means
What Students Need to Do
- Students calculate with positive and negative fractions, decimals, and integers. They apply sign rules, find common denominators when needed, and use reciprocals to divide fractions.
What Mastery Looks Like
- A student accurately calculates with mixed forms, including negative fractions and decimals. They show useful steps, simplify fractions, and check whether the sign and size of each answer make sense.
Common Misconceptions
- Students often think subtraction always makes a number smaller, so they mishandle subtracting a negative. They may use multiplication sign rules for addition, flip the wrong fraction during division, or misalign decimal places.
How to Assess It
- Use this exit ticket: compute −3/4 + 5/8, 2.6 − (−1.9), (−4/5)(15/8), and −3.6 ÷ 0.9, then explain one answer's sign.
Lesson moves
Ways to Teach It
Give pairs red and black counters, then have them model integer sums and differences before matching each model to an equation.
Have students answer the prompt, “Why does subtracting a negative increase the value?” using an equation and a number line.
Run a four-corner game where students solve one rational-number problem, then move to the corner labeled with the correct answer.
Give a bank balance of $18.50, three $7.25 purchases, and a $10 deposit, then ask students to find the final balance.
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Printable MA.7.NSO.2 Worksheet
A ready-to-print activity worksheet aligned to MA.7.NSO.2, 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.912.NSO.1.4
Apply previous understanding of operations with rational numbers to add, subtract, multiply and divide numerical radicals.
- MA.912.AR.1.3
Add, subtract and multiply polynomial expressions with rational number coefficients.
- MA.6.NSO.2
Add, subtract, multiply and divide positive rational numbers.
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