4.NBT.B.4
Fluently add and subtract multi-digit whole numbers with sums less than or equal to 1,000,000, using the standard algorithm.
Khan Academy ResourcesMulti-digit additionMulti-digit subtractionAdding 3-digit numbersSubtracting 3-digit numbers (regrouping) Worked example: Subtracting 3-digit numbers (regrouping twice)Worked example: Subtracting 3-digit numbers (regrouping from 0)Using place value to add 3-digit numbers: part 1Worked example: Subtracting 3-digit numbers (regrouping) Multi-digit subtraction: 389,002-76,151Relate place value to standard algorithm for multi-digit subtractionUsing place value to add 3-digit numbers: part 2Adding multi-digit numbers: 48,029+233,930 Relate place value to standard algorithm for multi-digit addition

1-on-1 AI tutoring aligned to 4.NBT.B.4. Instant help for students, real-time insights for teachers.
Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.
Free for teachers, forever →