// archives

## Solutions 80-89

This category contains 10 posts

### Project Euler Problem 80 Solution

Calculating the digital sum of the decimal digits of irrational square roots.

### Project Euler Problem 81 Solution

Find the minimal path sum from the top left to the bottom right by moving right and down.

### Project Euler Problem 82 Solution

Find the minimal path sum from the left column to the right column.

### Project Euler Problem 83 Solution

Find the minimal path sum from the top left to the bottom right by moving left, right, up, and down.

### Project Euler Problem 84 Solution

In the game, Monopoly, find the three most popular squares when using two 4-sided dice.

### Project Euler Problem 85 Solution

Investigating the number of rectangles in a rectangular grid.

### Project Euler Problem 86 Solution

Exploring the shortest path from one corner of a cuboid to another.

### Project Euler Problem 87 Solution

Investigating numbers that can be expressed as the sum of a prime square, cube, and fourth power?

### Project Euler Problem 88 Solution

Product-sum numbers

### Project Euler Problem 89 Solution

Develop a method to express Roman numerals in minimal form.