COMPOUND SUBTRACTION, TEACHES to find the difference, inequality or excess, between any two sums of diverse dénominations.

RULE.

Place those numbers under each other, which are of the same denomination, the less being below the greater; begin with the least denomination, and if it exceed the figure over it, borrow as many units as make one of the next greater; subtract it therefrom; and to the differente add the upper figure, remembering always to add one to fee dext superior denomination for that which you borrowed.

NOTE. The method of proof is the same as in simple subtraction.

12. Borrowed 271. 11s.

much remains due ?

and paid 197. 17s. 6d. how Ans. f7 15s. 6d.

19. How much does $177. 6s. exceed 1781. 18s. 54d. P

Ans. £158 7s. 6d.

14. From eleven pounds take cleven pence.

15. From seven thousand two hundred pounds, take

181. 17s. 6d.

Ans. £10 19s. 1d.

Ans. £7181 2s. 54d.

penny.

16. How much does seven hundred and eight pounds, exceed thirty-nine pounds, fifteen shillings and ten pence halfpenny ? Ans. 668 4s. 1d. 17. From one hundred pounds, take four pence halfAns. £99 19s. 74d. 18. Received of four men, the following sums of money, viz. The first paid me 37. 11s. 4d. the second 25l. 16s. 7d. the third 19l. 14s. 6d. and the fourth as much as all the other three, lacking 19s. 6d. I demand the whole sum received? Ans. £165 5s. 4d.