Practice skip counting using the "guess and check" method. Once the number line has been completed, find the distance between the stars. Skip counting by 2s, 3s, 4s, 5s, 6s, 10s, 50s, and 100s. A total of 24 number lines. Answer key included. Print off as a worksheet, have it laminated for math tubs, or use as a presentation. Place values between 10s and 1,000s. Number lines do cross over the decade and century marks.