Daboll's Schoolmaster's Assistant: Improved and Enlarged, Being a Plain Practical System of Arithmetic, Adapted to the United States |
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Page 18
Having placed units under units , tens under tens , & c . draw a line underneath ,
and begin with the units ; after . adding up every figure in that column , consider
how many tens are contained in their sum ; set down the remainder under the ...
Having placed units under units , tens under tens , & c . draw a line underneath ,
and begin with the units ; after . adding up every figure in that column , consider
how many tens are contained in their sum ; set down the remainder under the ...
Page 20
Excess of 9 ' s . et loivono % There is another method of proof , as follows : Reject
or cast out the nines in each EXAMPLE . duw or sum of figures , and set down the
3 7 8 2 1 6 2 remainders , each directly even with the 5 7 6 6 figures in its row ...
Excess of 9 ' s . et loivono % There is another method of proof , as follows : Reject
or cast out the nines in each EXAMPLE . duw or sum of figures , and set down the
3 7 8 2 1 6 2 remainders , each directly even with the 5 7 6 6 figures in its row ...
Page 25
SIMPLE SUBTRACTION Subtraction of whole Numbers , TEACHETH to take a
less number from a greater , of the same denomination , and thereby shows the
difference , or remainder : as 4 dollars subtracted from 6 dollars , the remainder is
...
SIMPLE SUBTRACTION Subtraction of whole Numbers , TEACHETH to take a
less number from a greater , of the same denomination , and thereby shows the
difference , or remainder : as 4 dollars subtracted from 6 dollars , the remainder is
...
Page 26
Ans . One thousand . 21 . From nine hundred and eighty - seven millions , take
nine hundred and eighty - seven thousand . Ans . 986015000 . 22 . Subtract one
from a million , and shew the remainder . Ans . 999999 . QUESTIONS . 1 .
Ans . One thousand . 21 . From nine hundred and eighty - seven millions , take
nine hundred and eighty - seven thousand . Ans . 986015000 . 22 . Subtract one
from a million , and shew the remainder . Ans . 999999 . QUESTIONS . 1 .
Page 29
... placing the first figure in each product exactly under its multiplier ; *
Multiplication may also be proved ty casting out the o ' s in the t180 factors , and
setting down tbe reinainders ; then multiplying the two remainders together ; if the
excess or ...
... placing the first figure in each product exactly under its multiplier ; *
Multiplication may also be proved ty casting out the o ' s in the t180 factors , and
setting down tbe reinainders ; then multiplying the two remainders together ; if the
excess or ...
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Bibliographic information
| Title | Daboll's Schoolmaster's Assistant: Improved and Enlarged, Being a Plain Practical System of Arithmetic, Adapted to the United States |
| Author | Nathan Daboll |
| Publisher | G. Tracy, 1841 |
| Original from | Harvard University |
| Digitized | 28 Aug 2007 |
| Length | 231 pages |
| Export Citation | BiBTeX EndNote RefMan |