Adding and subtracting large numbers (4th grade math)

I show examples of how to add and subtract numbers with up to six digits, with regrouping (carrying/borrowing). We also add a few numbers with mental math, solve a word problem about a library, and solve a problem that Mathy my mammoth mascot made up... about the weights of the mammmoths in Mathy's family. :)

See also

Find all the factors of a given number — online practice

Math Mammoth Grade 4 curriculum

Back to the list of 4th grade videos

Back to the index of all videos