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

Grid Sum – Level 1 – Easy

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

Example Grid:
49 30 34
41
x² + 1
—
2x + 1
33
—
—
x² - x
39
—
x² - x + 1
—

Your Workings For Grid Sum

Enter your working out in this box:

Then insert your suggested answers in the grid below:

49
30
34
41
x² + 1
2x + 1
33
x² - x
39
x² - x + 1

Reveal the Answer

Additional instructions for Grid Sum (Level 1, Easy)

Grid Sum – Easy

Think “total minus known”. Easy grids are usually one-step arithmetic per space.

  • Pick a row with one blank.
  • Add the visible numbers.
  • Subtract that total from the row target.
  • Place the answer and verify vertically.

Check: if a number breaks the column total, re-calculate before moving on.

Full help: Grid Sum

Concepts covered in this puzzle:

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