For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
Why water teaches this standard well
A camp that needs 10 water jugs and has 7 needs 3 more; a 10-cup pitcher with 6 cups poured needs 4 more. Lining up counters against a row of 10 shows the missing part, and the answer is the number of empty spaces.
Materials tagged with this code are written to the full standard
, and each carries a written
note explaining the alignment. See how we review materials.