Trade a ten
Give kids base-ten rods and cubes. When they don't have enough ones, they physically trade a rod for ten cubes. After a few rounds with blocks, move to the regrouping pack and have them sketch the trade before writing.
Why it works: going from real objects to pictures to symbols is a core recommendation of the U.S. Department of Education's elementary math guide.
Try it withDouble Digit Subtraction Regrouping Worksheet PackWorksheetsOpen it →























