MAT-03.NBT.02

MAT-03 Targeted Standards
(NBT) Domain: Number and Operations in Base Ten
Cluster: Use place value understanding and properties of operations to perform multi­digit arithmetic.

MAT-03.NBT.02 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Fluently adding and subtracting means students are able to work accurately, efficiently, and flexibly with numbers.  The word algorithm refers to a procedure or series of steps.  This standard also requires that students have experiences that enable them to explore place value strategies and the relationships among numbers to solve problems.

Student Learning Targets:

Reasoning Targets

  • I can decide what makes a strategy efficient based on the numbers in a problem.
  • I understand and recognize when I need might need to regroup/trade ones, tens, hundreds in my strategy.

Skills (Performance) Targets

  • I can add and subtract numbers up to 1000 to solve problems.
  • I can explain the strategy I used to solve a problem.
  • I can decompose numbers into place value parts to solve problems.
  • I can use a strategy that ha a reasonable amount of steps to solve a problem.

 

Rubric / Proficiency Scale

Score   Description Sample Activity
4.0

Advanced Criteria is Under Development

In addition to Score 3.0 performance, the student demonstrates in-depth inferences and applications regarding the more complex content

-
  3.5 In addition to Score 3.0 performance, the student demonstrates in-depth inferences and applications regarding the more complex content with partial success.
3.0

Student is able to correctly solve addition and subtraction problems within 1000 with regrouping in multiple positions and without regrouping situations using efficient strategies.

I can add and subtract numbers within 1000, with no mistakes.

I can choose a strategy that makes sense to me and that I can explain.

I can choose a strategy that has a reasonable amount of steps to solve a problem.

I can understand when I need to regroup/trade ones, tens, and hundreds in my strategy.

I can break numbers into place value parts to solve problems.

-
  2.5 No major errors or emissions regarding 2.0 content and partial knowledge of the 3.0 content.
2.0

Student is able to correctly solve addition and subtraction problems within 1000 with regrouping in one position and without regrouping situations using efficient strategies.

I can add and subtract numbers within 1000, with no mistakes.

I can choose a strategy that makes sense to me and that I can explain.

I can choose a strategy that has a reasonable amount of steps to solve a problem.

I can understand when I need to regroup/trade ones or tens in my strategy.

I can break numbers into place value parts to solve problems.

-
  1.5 In addition to 1.0 content, student has partial knowledge of the 2.0 and/or 3.0 content.
1.0

Student is able to add and subtract numbers within 100 with and without regrouping situations, but may have minor computational errors.

I can add and subtract numbers within 100, but I may have mistakes.

I can choose a strategy to solve a problem, but my strategy may not be the most efficient.

-
  0.5 Limited or no understanding of the skill is demonstrated.

Resources

Websites

Vocabulary

  • addition
  • add
  • sum
  • subtract
  • subtraction
  • difference
  • strategies
  • place value
  • properties - rules about how numbers work
  • algorithms
  • regroup / trade / bundle

 

» Third Grade Math