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

Example Grid:
40 28 11
21
—
3x
—
35
—
x² - x + 1
—
23
—
x - 1
x

Your Workings For Grid Sum

Enter your working out in this box:

Then insert your suggested answers in the grid below:

40
28
11
21
3x
35
x² - x + 1
23
x - 1
x

Reveal the Answer

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

Grid Sum – Easy

Work systematically: don’t guess — calculate.

  • Choose the row/column with the fewest blanks.
  • Fill in the missing number using subtraction from the total.
  • Cross-check immediately with the intersecting line.

Momentum tip: after each correct placement, scan the whole grid again — something else may now have only one blank.

Full help: Grid Sum

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