 | Charles Vyse - Arithmetic - 1785 - 350 pages
...continuing to the laft Row, at which fet down the total Amount. PROOF. Vary the adding, by beginning at the Top of the Sum, and reckon the Figures downwards, in the fame Manner you added them upwards, and if the Sum comes the fame as before-, it is fuppofed to be... | |
 | Charles Vyse - Arithmetic - 1806 - 342 pages
...continuing to the laa.t Row, at which set down the total Amount. PROOF. Vary the-adding, by beginning at the Top of the Sum, and reckon the Figures downwards, in the same Manner as you added them upwards ; and if the Sum comes the same as before, it is supposed to be right. TABLE... | |
 | Nicolas Pike - Algebra - 1808 - 470 pages
...Proceed in the same manner through every column, or row, and set down the whole amount of the last row.* PROOF. -Begin at the top of the sum and reckon the...figures downwards, in the same manner as they were added upwards, and, if it be right, this aggregate will be equal to the first. Or, cut cff the upper line... | |
 | Charles Vyse - Arithmetic - 1815 - 340 pages
...continuing to the last row, at which set down the total Amount. PROOF. Vary the adding, by beginning at the top of the Sum, and reckon the Figures downwards, in the same manner as you added them upwards ; and if the Sum come the same as before, it is supposed to be right. TABLE... | |
 | Nathan Daboll - Arithmetic - 1817 - 252 pages
...25712 51714 42719 84194 60845 97145 32516 37837 32851 71432 61784 14572 32719 52101 To prove Addition, begin at the top of the sum,, and reckon the figures downwards in the same manner as they were added upwards, and if it be right, this sum total will be equal to the first : Or cut off the upper line... | |
 | Nathan Daboll - Arithmetic - 1818 - 246 pages
...97145 ' •/:•> 32516 37857 S 3 8 5 1 ? . " 71432 61784 14572 32719 . 52101 prove Addition, cegin at the top of the sum, and reckon the figures downwards in the same manner as they were added upwards, and if it be right, this sum total will be equal to the first : Or put off the upper line... | |
 | Thomas Dilworth - Arithmetic - 1818 - 222 pages
...shillings under shillings, &.c. Q,. How do you prove addition ? A. The best way of proving addition is, U> begin at the top of the sum, and reckon the figures downwards in the same manner that they were added upwards : and if the second line or sum total be equal to the first, it is right.... | |
 | Nathan Daboll - Arithmetic - 1820 - 256 pages
...51714 42719 84194 60845 9-7145 3251 fi 37857 32851 71432 61784 14572 32719 52101 prove Addition, oegir. at the top, of the sum, and reckon the figures downwards in the same manner as thev wore added upwards, and if it be right, tids sum total ivill be equal to the first: Or cut off.... | |
 | Nicolas Pike - Arithmetic - 1832 - 538 pages
...at bottom, -'lirn add the remainders agjinft tticfcVfral rows, carting out 9 as uftt» as :; PROOK. Begin at the top of the sum and reckon the figures downwards, in the same manner as they were added upwards, and, if it be right, this aggregate will be equal to the first. Or, cut off the upper line... | |
 | Nicolas Pike - Arithmetic - 1822 - 562 pages
...with the fum at bottom. Then add the remainders againd the feveral row*, cafting out'p 13 often ai it PROOF. Begin at the top of the sum and reckon the figures downwards, iu (he same manner as they were added upwards, and, if it I»e right, this aggregate will be equal... | |
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... will be equal to the first : Or cut off the upper line of figures, and find the amount of the rest ; then if the amount and upper line, when added, be equal to the total, the work is supposed to be right. 
