## 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

units ...

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 theunits ...

Page 20

There is another method of proof , as follows :Reject or cast out the nines in each

luw or sum of figures , and set down the S7 8 2 i emainders , each directly even

with the 5 7 6 6 figures in its row ; find the sum of these 8 7 5 5

...

There is another method of proof , as follows :Reject or cast out the nines in each

luw or sum of figures , and set down the S7 8 2 i emainders , each directly even

with the 5 7 6 6 figures in its row ; find the sum of these 8 7 5 5

**remainders**; then...

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

...

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

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

... separately , placing the first figure in each product exactly under its multiplier ; *

Multiplication may also be proved ły casting out the 9's in the two factors , and

setting down the

...

... separately , placing the first figure in each product exactly under its multiplier ; *

Multiplication may also be proved ły casting out the 9's in the two factors , and

setting down the

**remainders**; then multiplying the two**remainders**together ; if the...

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