A five-year-old can say “twenty-seven” long before knowing what the 2 means. This kindergarten tens and ones worksheet opens that door. Ten colored boxes each show a number between 21 and 30, followed by two empty squares: one for tens and one for ones. The first box comes solved in red, so children can see the pattern before they start. Moreover, the page stays on counting to 30, one small range. The PDF has two pages: the worksheet and its answer key.