Basic Addition: Doubles Plus 1
Doubles plus 1 is an addition strategy for adding pairs of numbers where an addend is 1 more than the other addend. Students think of a doubles fact and add 1. For example, to solve 3+4, the student thinks of 3+3 (a doubles fact) and then adds 1 to make 7.
Then sort them into two categories on the t-chart: doubles or doubles +1.
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