Common Core · Grade 4
4.NF.B.3.A
Grade 4 — Understand adding and subtracting fractions with like denominators as joining and separating parts of the same whole.
The skill that covers it
What a student should be able to do
- Add and subtract fractions with like denominators.
- Find a common denominator and add or subtract unlike fractions.
- Add and subtract mixed numbers, regrouping when needed.
- Simplify the result and check it against an estimate.