Entry task for fourth grade teachers to use for common core math. Can be used whole group or differentiated, depending on the number chosen. Slip into a SmartPal sleeve or page protector and kids can use dry erase marker over and over again! Also can be used for formative assessment.
The first few times I give the whole class the same number. Kids work independently or in pairs, then we go over whole class. Later I choose different numbers based on readiness and go over in small group. Great bell ringer or exit slip, too!