竹子头, related to "bamboo". Its stroke order 
等 (děng; equal in quantity, rank, group, to wait)

第 (dì; sequence; used before numerals to form ordinal numbers)

管 (guǎn; wind instrument; cylindrical things, to manage, to guarantee)

笑 (xiào; to smilie, to laugh)

算 (suàn; to calculate, to plan)
