Elementary arithmetic, with brief notices of its history... by Robert Potts.

15

EXERCISES.
I.
1. iReduce ~15 16s. 8~d. to farthings, reverse the process, and
explain the reason of each step.
2. How many fourpenny pieces must be given in exchange for
half-a-guinea, half-a-sovereign, and half-a-crown?
3. How many half-crowns, how many sixpences, and how many
fourpences are there in 200 guineas?
4. How many half-crowns, and how many half-guineas are there
in a million of fourpenny pieces?
5. How many farthings are there in five half-sovereigns, five halfcrowns, five sixpences, and five halfpence?
6. Reduce ~13 to shillings, ~13 15s. to pence, ~13 15s. 7d. to
farthings, and reverse the operations.
7. In the reduction of farthings to pounds, the farthings are first
reduced to pence by dividing by 4; the pence to shillings by dividing
by 12; and the shillings to pounds by dividing by 20; in what case
would the same result be obtained by dividing the farthings, first by
20, next by 12, and lastly by 4?
II.
1. Find the amount of ~25 10s. 6d., ~120 Ils. 41d., ~247 19s. 91d.,
~1,000, and ~l 17s. lld.
2. Subtract ~44 17s. 103d. from ~100 Os. Old., and verify the
truth of the result.
3. What is the amount in pounds sterling of 25695426 shillings,
632985 florins, 2984695 crowns, and 3296 half-sovereigns, and what is
the number of pieces of money?
4. In an account current between two persons, A and B, at the
end of the first quarter A owed B ~127 10s. 7~d., at the end of the
second B was in debt to A ~100 Ils. 73d., and at the end of the
third quarter he was further in debt to A ~95 17s. 8ld.; but at the
end of the fourth quarter A was in debt to B ~190 19s. ll1d. What
was the balance at the end of the year, and to which of them was it
due?
5. The total value of British goods exported from Liverpool during
the 9 months ending October 31, in the years 1865, 1866, 1867, were
~59,502,204, ~73,967,069, and ~63,960,580 respectively; find the
increase of the value of the goods exported in 1867 upon the value in
1865, and the decrease upon the value in 1866.