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

Example Grid:
29 36 18
37
x
22
3x
24
x² - x + 1
x - 2

Your Workings For Grid Sum

Enter your working out in this box:

Then insert your suggested answers in the grid below:

29
36
18
37
x
22
3x
24
x² - x + 1
x - 2

Reveal the 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

Concepts covered in this puzzle:

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