For third-graders learning Common Core math in Georgia, there are four ways to subtract—and only four ways allowed. The picture above is just one of the methods for subtraction under Common Core ...
Join Mrs. McCartney for an addition number talk with D.C.! Join Mrs. McCartney for an addition number talk with D.C.! Get your math brain ready as we meet T-Pops and have some fun subtracting ...
How to subtract tens from two-digit numbers Bill and Bernie use labelled balloons to show subtractions of 10 from several two-digit numbers which are less than 100. Bernie thinks of a number and Bill ...
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