Shown with a cast-on count of 27 stitches.  

• Round 1: K10, 2/1 RPC, p1, 2/1 LPC, k10.
• Round 2: K9, 2/1 RC, p1, k1, p1, 2/1 LC, k9.
• Round 3: K8, 2/1 RPC, [p1, k1] twice, p1, 2/1 LPC, k8.
• Round 4: K7, 2/1 RC, [p1, k1] 3 times, p1, 2/1 LC, k7.
• Round 5: K6, 2/1 RPC, [p1, k1] 4 times, k1, 2/1 LPC, k6.
• Round 6: K5, 2/1 RC, [p1, k1] 5 times, p1, 2/1 LC, k5.
• Round 7: K4, 2/1 RPC, [p1, k1] 6 times, k1, 2/1 LPC, k4.
• Round 8: K3, 2/1 RC, [p1, k1] 7 times, p1, 2/1 LC, k3.
• Round 9: K2, 2/1 RPC, [p1, k1] 8 times, k1, 2/1 LPC, k2.
• Round 10: BO (0 sts).