Lessons for 4.NBT.B.4
Multi-digit additionAdd by place value, regrouping when a column passes nine.Lesson
Multi-digit subtractionSubtract by place value, regrouping when a column runs short.Lesson
The standard addition algorithmAdding column by column from the right and carrying into the next place.Lesson
The standard subtraction algorithmSubtracting column by column from the right, unbundling where needed.Lesson
Subtracting across zerosDifferences where the places being borrowed from hold nothing.Lesson
Printable Worksheets
The standard addition algorithm worksheet (PDF)Printable worksheet with answer keyPreview
The standard subtraction algorithm worksheet (PDF)Printable worksheet with answer keyPreview
Subtracting across zeros worksheet (PDF)Printable worksheet with answer keyPreview