Florida B.E.S.T. MA.7.NSO.2.2
The Standard
Add, subtract, multiply and divide rational numbers with procedural fluency.
Florida B.E.S.T. Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students calculate with positive and negative integers, fractions, and decimals using all four operations. They choose efficient written methods, track signs carefully, and simplify exact answers.
What Mastery Looks Like
- Students accurately solve problems with signed integers, fractions, and decimals. They simplify results, show efficient steps, and use estimation or inverse operations to check answers.
Common Misconceptions
- Students may apply the multiplication sign rule to addition and assume two negative numbers always produce a positive result. They may ignore operation order, use unlike denominators directly, or place decimals incorrectly when dividing.
How to Assess It
- Give this exit ticket: Compute −3.5 + 1.8, 5/6 − (−1/4), (−2/3)(9/5), and −4.2 ÷ 0.7. Simplify each answer.
Lesson moves
Ways to Teach It
Use red and yellow integer chips to model signed addition and subtraction, then match each model to a numerical equation.
Ask students to write: Why is subtracting a negative equivalent to adding a positive? Include a number-line example.
Play Operation Draw: students draw two signed rational cards and an operation card, compute, then earn a point for a correct simplified answer.
Have students calculate a mock account balance after deposits, withdrawals, four equal fees, and splitting the remainder among three savings goals.
Free download
Printable MA.7.NSO.2.2 Worksheet
A ready-to-print activity worksheet aligned to MA.7.NSO.2.2, with an answer key for the teacher on its own page. No account needed.
PDF, US Letter, prints cleanly in black and white.
Download the worksheetKeep exploring
Related Standards
- MA.3.NSO.2.1
Add and subtract multi-digit whole numbers including using a standard algorithm with procedural fluency.
- MA.8.NSO.1.5
Add, subtract, multiply and divide numbers expressed in scientific notation with procedural fluency.
- MA.7.NSO.2
Add, subtract, multiply and divide rational numbers.
- MA.6.NSO.2
Add, subtract, multiply and divide positive rational numbers.
Turn this exact standard into a lesson
Grade, subject, topic, and the complete standard are prefilled. Create one free, no account needed.