A big cube, a few rods and some small squares: what number is that? This 3rd grade place value blocks matching worksheet shows four drawings of base-ten blocks. A guide on the side reminds children what each piece is worth: a cube for a thousand, a flat for a hundred, a rod for ten and a small square for one. For each drawing, four numbers are offered, such as 1,067, 167, 1,760 and 160. Your child counts the pieces and checks the number that matches. A second page gives the answer key.