Teach students a variety of strategies as they learn to subtract 2-digit numbers. These Boom Card decks are interactive as students drag base ten blocks, use a hundreds chart, use number lines, drag regrouping marks, and demonstrate how to use the algorithm correctly. ❤️ ❤️ NOTE: There are VIDEO PREVIEWS for EACH Deck in the individual product listings.❤️ 6 Interactive decks are included: ✅ 1) Subtracting 2- Digit Numbers Minus Single Digit Numbers Using the Number Line Strategy ✅