Counting Numbers to 1000 Charts In 2nd grade math, kids should know larger numbers. Numbers over 100 should be the part of 2nd grade math curriculum.  Most of the kids can reach to 1000 easily as

Counting Numbers to Hundred - Forward & Backward In grade one kids should know counting to 20 at least (many kids can count to 100 in grade 1 though). In second grade math kids must know larger numbers