# Puzzles

## Backwards fours

Source: FiveThirtyEight

If A, B, C, D and E are all unique digits, what values would work with the following equation?

$$ABCCDE\times 4 = EDCCBA$$If you enjoyed this puzzle, check out Sunday Afternoon Maths LXIV,

puzzles about multiplication, or a random puzzle.

puzzles about multiplication, or a random puzzle.