This would be a great center activity for math while teacher is doing small group instruction! It takes multiplication from just recalling facts to a deeper level of understanding. LOVE! Multiplication of the Day for 3rd Grade!
This is a poster dealing with place value. I would use this in my classroom to hang in the classroom so children could refer back to it while working on expanded form and place value.
Tales from Outside the Classroom: 3rd Grade Common Core Math Warm Ups