...firgle Quantity, is marked either with the fign -f- or — , without afluming fome other quantity, to which it is to be added, or from which it is to be fubtracled, the mark will have no meaning or fignification. Thus, if it be faid, that the fquare of...

...any fmgle Quantity, is marked either with the fign + or —, without afluming fome other quantity, to which it is to be added, or from which it is to be -fi-btracted, the mark will have no meaning or fignification. Thus, if it be (aid, that the fquare...

...quantity 6 indicate addition and subtraction, they would seem to imply some antecedent quantity to which b is to be added or from which it is to be subtracted ; they are used however without this restriction, and for the present it will be sufficient for the...

...affirmative or negative ; for if any single quantity, as 6, is marked either with the sign + or with the sign — without assigning some other quantity,...signification : thus if it be said that the square of — 5, or the product of —5 into —5, is equal to +25, such an assertion must either signify no more than...

...in order that the exercise may be varied thus — "1 + ;" "-!;" "+1." (1) Indicate number to which 1 is to be added or from which it is to be subtracted. Pupils record answers. (2) Indicate number as starting point and time pupils to see how quickly they...

...quamity, as b, is marked either with the sign + or with the sign — without affecting some other quamity, as a, to which it is to be added, or from which it...signification: thus if it be said that the square of —5, or the product of —5 into —5, is equal to +25, such an assertion must either signify no more than...