arithmetic
n. 算术；演算，计算；数据统计
adj. 算术的
复数 arithmetics
例句
He's not very good at arithmetic.
他不太擅长算术。
《牛津词典》
They will concentrate on teaching the basics of reading, writing and arithmetic.
他们将重点教授阅读、写作和算术的基本要点。
《柯林斯英汉双解大词典》
He is good at arithmetic.
他擅长算术。
《新英汉大辞典》
