to count backwards (from 10 down to 0); to count down; from the bottom
倒 (dǎo) · 10 strokes
Phonosemantic compound. 亻 represents the meaning and 到 represents the sound.
数 (shǔ) · 13 strokes
Simplified form of 數. Phonosemantic compound. 攵 represents the meaning and 婁 represents the sound.