Let's Learn Numbers! Your students will have so much fun learning and practicing their number identification, counting, and modeling numbers 1-20 with this print & GO math worksheet set! This math practice set is packed with number skills. It covers numbers 1-20. Covered on each page is tracing and writing the digit and the number in word form, making the number on a tens frame, making the number with tally marks, finding the number and circling (or stamping, or highlighting, or coloring it)