Education > Complete treatise on practical arithmetic and book-keeping

APPENDIX. 247
To multiply by “3’ take and to multiply by -6’ take i,
-id subtract it from the multiplicand,
t Instead of ciphers on the right of the product, annex the
| peating figures.
j 27-08‘3’ -lO'S’ 27-88‘3* *79-6’ Sl-7’
7 9 52 8*75 50 8000
•481’
7
•72* 4-3‘571428’ 86%53‘296’
20 600 58-75
638-25 multiplied by -4’ is 283-6.'
Mult. 87-2 by -O’?’.
Mult 87-34 by 2-6‘7’
Mult. -368 by-3\
Mult. 5-6' by 2-3'.
Mult. 825 by -SG’.
Mult. 64-35 by •7‘72’.
Mult. *725 by -6’. •
Mult. G-ZW by -(>‘6’.
Mult. 8-4'5’ by -S’.
Mult. •7,18’ by -6’.
Mult. •S'Cy by 4-6*.
Mult. 8-020S‘3’ by -72’.
Ans.
Ans. 233-877*1’. .
Ans. •122’6’.
Ans. 13-2’.
Ann. 300.
- Ans. 49-725’.
- Ans. 48‘8’.
Ans. -41‘5’.
Ans. 2-8T.
Ans. •4‘78’:
Ans. l-4‘42’.
Ans. 5-8‘3\
To divide Intcrmimte Decimals.
If the dividend-only be interminate, divide as in-finite,
[ecimals ; only annexing the repeating or circulating figures
astead of ciphers, in order to carry on the division.
If the divisor be interminate, reduce it to a vulgar frac-
ion ; then multiply by the denominator, and divide by the
lumerator.
To divide by -3' multiply by 3; and to divide by -G’
idd \ of the dividend to it. -
Divide 5-l‘6J by 1. - Ans. 1-291‘6’.
Divide 3-370’ by 7. - Ans. -48T.
Divide 4-1966‘2’by 37. . Ans. *1134‘2\
Divide 23-5 by -4’. - Ans. 52-875.
Divide 8'962’fcy -3’. Ans. 26-8’8‘8’