Unit 4: Fractions & Decimals
Target 354.NF.B.3cCh 7: Target 3

I can add and subtract mixed numbers with like denominators.

Standard cap: 4 - Analyze complex regrouping or compare strategies.

Subskills what students must be able to do

  • 1I can add and subtract mixed numbers when no regrouping is needed.
  • 2I can rename a whole or fraction when regrouping is needed.
  • 3I can accurately add and subtract mixed numbers.

Proficiency Scale & ⚓️ Tasks

1 → 4 proficiency scale
1Beginning

“Solve 2 1/5 + 3 2/5.”

2Developing

“Rename 4 1/4 so you can subtract 2 3/4.”

3Proficient

“Solve mixed-number addition and subtraction problems, including regrouping.”

4Advanced

“Two students regrouped differently to solve 6 1/5 − 2 4/5. Analyze both methods and determine whether each is valid.”