Disme: The Art of Tenths, or Decimall Arithmetike: Teaching How to Perform All Computations Whatsoeuer, by Whole Numbers Without Fractions, by the Foure Principles of Common Arithmeticke: Namely Addition, Subtraction, Multiplication, and Diuision. Inuented by the Excellent Mathematician, Simon Steuin. Published in English With Wholesome Additions by Robert Norton, Gent