Join Mrs. McCartney for an addition number talk with D.C.! Join Mrs. McCartney for an addition number talk with D.C.! Get ready to have some fun subtracting two-digit numbers with regrouping and ...

Hello, I’m Mr Smith, and together we’re going to learn about adding a one digit number to numbers that have up to three digits. I’m going to show you some clever tricks that will help you picture the ...