Erase 7 boxes and choose 3 of them to write an equation with 3 addends. Your GOAL is to create to write an equation that has a sum that is a close to 20 as possible. PLAYING WITH A PARTNER: Partners compare their sums and the partner who is closer to 20 wins. PLAYING SOLO: Using the same 7 digits write 3 different equations. Circle the equation that is closest to 20. MUST DO: REFLECTION- Respond to at least ONE question. You can use or READY FOR A CHALLENGE? Play the same game- but erase 4 and write an equation that is closest to 50.
Addressing: 2.OA.B.2 Based on Illustrative Mathematics