Crossword-Solution: EXA 3 letters, 3 clues 🏆 scrabble score: 10

With the coming of the Saxons, the river, the Roman Isca, became the Exa, and the city was called Exanceaster, modified in due course to Exeter.

And for example I wyll set downe this su{m}me 287965, -X----------- ------o-o---- o ------o-o-o-- o -X----o-o---- o ----o-o-o-o-- o ----o-------- o ------------- which su{m}me yf you marke well, you nede none other exa{m}ples for to lerne the numeration of [*118b] this forme.

And yf you haue marked these two exa{m}ples well, you nede no farther enstructio{n} in Addition of 2 only summes: but yf you haue more then two summes to adde, you may adde them thus.

Not withstandynge you maye adde them in your mynde before you sette them downe, as in this exa{m}ple, you myghte haue sayde 5 tymes 300 is 1500, {and} 5 tymes 60 is 300, also 5 tymes 5 is 25, whiche all put together do make 1825, which you maye at one tyme set downe yf you lyste.