reckonmaster

Etymology
From. Compare 🇨🇬,, 🇨🇬, 🇨🇬.

Noun

 * 1)  A mathematician or arithmetician.
 * 2) * 1570,, in H. Billingsley (trans.) Euclid, Elements of Geometry, Preface:
 * For the common Logist, Reckenmaster, or Arithmeticien, in hys vsing of Numbers: of an Vnit, imagineth lesse partes: and calleth them Fractions.