Add and subtract within 20.
Fluently add and subtract within 20 using mental strategies. Know from memory all sums of two one-digit numbers. (2.OA.2)
More information and the complete College and Career Readiness Standards can be found here.
Add and subtract within 20.
Fluently add and subtract within 20 using mental strategies. Know from memory all sums of two one-digit numbers. (2.OA.2)
More information and the complete College and Career Readiness Standards can be found here.