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Grid Sum Puzzle

Grid Sum – Level 1 – Easy

Other Puzzles

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

Example Grid:
37 31 16
25
—
—
x
22
x² + 1
x - 2
—
37
—
x²
—

Your Workings For Grid Sum

Enter your working out in this box:

Then insert your suggested answers in the grid below:

37
31
16
25
x
22
x² + 1
x - 2
37
x²

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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