Grid Sum Puzzle

Grid Sum – Level 1 – Easy

Each row and column must add up to the totals shown – but all the values are algebra expressions. Work out the value of x, then fill in the grid using each expression once.

Available Expressions (use each exactly once):
  1. x
  2. x + 2
  3. x - 2
  4. x² - x
  5. x² + 1
  6. x - 1
  7. 2x + 1
  8. x + 3

Example Grid:
28 23 25
19
x + 3
25
x² + 1
x - 2
32
x² - x

Your Workings For Grid Sum

Enter your working out in this box:

Then insert your suggested answers in the grid below:

28
23
25
19
x + 3
25
x² + 1
x - 2
32
x² - x

Reveal the Answer

Additional instructions for Grid Sum (Level 1, Easy)

Grid Sum – Easy

Keep your arithmetic clean: most Easy mistakes are simple addition slips.

  • Add carefully (line up digits if needed).
  • Double-check subtraction before writing the number in ink.
  • Confirm both row and column totals still match.

If stuck: re-check earlier sums — a small error early can block the rest of the grid.

Full help: Grid Sum

You must be logged in to view this answer.