Subtraction in the Thousands
Channel: Mathy Matt: Math and the World
Date: 2020-09-29

Children's strategies for subtracting in the thousands followed by a brief discussion of "standard" algorithms.

0:00 Intro
0:32 Incrementing
1:57 Combining Like Units
2:54 Compensating/Rounding
4:25 Efficiency
5:32 "Standard" Algorithm 1
7:07 "Standard" Algorithm 2