Here is an arithmetical curiosity:—
| 9 | × | 9 | + | 7 | = | 8 | 8 | ||||||||||||||
| 9 | × | 9 | 8 | + | 6 | = | 8 | 8 | 8 | ||||||||||||
| 9 | × | 9 | 8 | 7 | + | 5 | = | 8 | 8 | 8 | 8 | ||||||||||
| 9 | × | 9 | 8 | 7 | 6 | + | 4 | = | 8 | 8 | 8 | 8 | 8 | ||||||||
| 9 | × | 9 | 8 | 7 | 6 | 5 | + | 3 | = | 8 | 8 | 8 | 8 | 8 | 8 | ||||||
| 9 | × | 9 | 8 | 7 | 6 | 5 | 4 | + | 2 | = | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||||
| 9 | × | 9 | 8 | 7 | 6 | 5 | 4 | 3 | + | 1 | = | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
| 9 | × | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | + | 0 | = | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
No. LXXIX.—AT A DUCK POND
A farmer’s wife kept a pure strain of Aylesbury ducks for market on a square pond, with a duck-house at each corner. As trade grew brisk she found that she must enlarge her pond. An ingenious neighbour undertook to arrange this without altering the shape of the pond, and without disturbing the duck-houses. What was his plan?
STRANGE SUBTRACTION
It would seem impossible to subtract 69 from 55, but it can be arranged thus, with six as a remainder:—
| SIX | IX | XL |
| IX | X | L |
| S | I | X |