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Grid Sum Level 1 Medium maths puzzle involving algebra, column, expressions and grid

Grid Sum – Level 1 – Medium

Home » Puzzles » Grid Sum » Level 1 - Medium » Grid Sum – Level 1 – Medium
Topics: algebra, column, expressions, grid, linear equations, row

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. 3x + 1
  2. (x + 1)²
  3. (x - 2)(x + 2)
  4. x² - x + 2
  5. (x + 3)(x - 1)
  6. x² - x + 3
  7. (x - 2)(x + 3)
  8. (x + 1)(x - 2)
  9. (x + 2)²

Example Grid:
38 23 34
46
—
x² - x + 3
—
23
—
—
—
26
(x + 1)²
—
(x + 1)(x - 2)

Your Workings For Grid Sum

Enter your working out in this box:

Then insert your suggested answers in the grid below:

38
23
34
46
x² - x + 3
23
26
(x + 1)²
(x + 1)(x - 2)

Reveal the Answer

Reveal Answer
Additional instructions for Grid Sum (Level 1, Medium)

Grid Sum – Medium

Look for balance patterns. If two rows share most numbers, differences between their totals can reveal a missing value.

  • Compare similar rows or columns.
  • Use subtraction between totals to isolate a blank.
  • Confirm the result satisfies both axes.

Finish: verify the entire grid once completed.

Full help: Grid Sum

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