数 means number; to count and is a JLPT N3 kanji. It has 13 strokes and uses the hand holding a stick radical (攵).
Stroke order · 13 strokes
On'yomi (音読み)
スウ、ス
Kun'yomi (訓読み)
かず、かぞ(える)、しばしば
Radical
攵 · hand holding a stick
Strokes
13
How to remember 数
Counting rice (米) while a stick (攵) is in the woman's (女) hand — the exhaustion of calculation. 数字 (numeral), 数える (to count) — the kanji of mathematics.