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 such as counting to 200 or 300 and beyond.
Hundred chart is the key to learn counting numbers in grade two math. Below is the hundreds charts followed by links to pdf files;
Hundreds Chart Backward Counting Skip Counting
Hundred Chart Backward Count Blank
Hope that fellow steemians will use these 100 charts to make their kids super smart in 2nd grade math counting.
