Concerning NOTATION of Numbers.

RITHMETIC teaches the properties of Numbers; and by them deduces the methods of calculating, or computing from certain data, the values, weights, measures, diftances, proportions, &c. of things.

2. Number is that by which every thing is counted; or that which anfwers this question, How many? (unless it be answer'd by nothing :) So if it be afked, how many days are in a week? the answer is seven, which is therefore called the Number of days in a week.

3. The Notes or Characters, by which Number is ordinarily expressed, are these, I one, 2 two, 3 three, 4 four, 5 five, 6 fix, 7 seven, 8 eight, 9 nine, o nothing.