Florida B.E.S.T. MA.2.M.1.3
The Standard
Solve one- and two-step real-world measurement problems involving addition and subtraction of lengths given in the same units.
Florida B.E.S.T. Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students solve real-world problems by adding or subtracting lengths measured in the same unit. They decide which operations to use and complete one or two steps.
What Mastery Looks Like
- Students choose addition or subtraction for each step and show their work with equations, drawings, or number lines. They solve accurately and label the answer with the given unit.
Common Misconceptions
- Students may add when a problem asks for the difference, or subtract when finding a combined length. They may ignore a second step, drop the unit label, or mix measurements from different objects.
How to Assess It
- Use this exit ticket: “A ribbon is 32 centimeters long. Mia cuts off 9 centimeters, then adds 14 centimeters. How long is it now?”
Lesson moves
Ways to Teach It
Give pairs rulers and paper strips, then have them measure, join, cut, and compare strips to answer two-step question cards.
Ask students to write and solve a story problem using lengths of 18 centimeters, 7 centimeters, and 5 centimeters.
Play a card game where students draw length cards and operation cards, then calculate the new length and check with a partner.
Measure two classroom shelves in inches, then ask how much longer one is and their combined length.
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Printable MA.2.M.1.3 Worksheet
A ready-to-print activity worksheet aligned to MA.2.M.1.3, 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.5.M.1.1
Solve multi-step real-world problems that involve converting measurement units to equivalent measurements within a single system of measurement.
- MA.2.AR.1.1
Solve one- and two-step addition and subtraction real-world problems.
- MA.5.M.1
Convert measurement units to solve multi-step problems.
- MA.7.AR.3.3
Solve mathematical and real-world problems involving the conversion of units across different measurement systems.
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