[Clint Vandiver]

I find this standard really unclear. I even tried to reason some clarification by reading kindergarten and second grade standards related to this topic. I honestly hoped that the standard was meant to allow more time with and understanding of what happens numerically when adding 2 digit numbers and multiples of ten. I think the ability to add 10 to a number is crucial in later math as students decompose and recompose numbers to make addition easier with numbers that make sense. The second grade standard did not mention multiples so I thought that meant in third grade that any addition problem was fair game as long as it met the number of digit requirements. Maybe some better wording would have been with special emphasis on being sure to include 2 digit numbers and multiples of 10.

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