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

Grid Sum – Level 1 – Easy

Home » Puzzles » Grid Sum » Level 1 - Easy » Grid Sum – Level 1 – Easy
Topics: algebra, columns, expressions, grid, linear equations, rows

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

Example Grid:
15 15 17
18
x + 1
—
—
19
—
x
—
10
x - 2
x² - x + 1
—

Your Workings For Grid Sum

Enter your working out in this box:

Then insert your suggested answers in the grid below:

15
15
17
18
x + 1
19
x
10
x - 2
x² - x + 1

Reveal the Answer

Reveal 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

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