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

Grid Sum – Level 1 – Easy

Home » Puzzles » Grid Sum » Level 1 - Easy » Grid Sum – Level 1 – Easy
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. x² - x + 1
  2. x
  3. x²
  4. 3x
  5. x - 1
  6. 2x
  7. 2x + 1
  8. x² + 1
  9. x + 3

Example Grid:
41 18 30
23
x²
—
—
29
—
2x
2x + 1
37
—
—
x² + 1

Your Workings For Grid Sum

Enter your working out in this box:

Then insert your suggested answers in the grid below:

41
18
30
23
x²
29
2x
2x + 1
37
x² + 1

Reveal the Answer

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

Grid Sum – Easy

What this puzzle is: fill in the missing numbers so that every row and column adds up to the total shown. Each number must work both horizontally and vertically.

How to begin:

  • Start with the row or column that has the most numbers already filled in.
  • Add the known numbers and subtract from the target total to find the missing value.
  • Write the number clearly, then immediately check it against the crossing row/column.

Tip: one correct placement usually unlocks another — keep scanning the grid after every fill.

Full help: Grid Sum

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