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4 7 9 12 = 24: 3 solutions

Difficulty: HardOpen in Solver

12 × (4 + 7 − 9) = 24

  1. 4 + 7 = 11
  2. 11 − 9 = 2
  3. 12 × 2 = 24

3 solutions

  • 9 + 12 − (4 − 7) = 24Steps
    1. 9 + 12 = 21
    2. 4 − 7 = -3
    3. 21 − -3 = 24
  • 4 × 12 ÷ (9 − 7) = 24Steps
    1. 4 × 12 = 48
    2. 9 − 7 = 2
    3. 48 ÷ 2 = 24

Solving hints

  • Build a factor pair: split the four numbers into two groups and try to make a factor pair of 24 — 3 × 8, 4 × 6, or 12 × 2 — then multiply the two groups.

  • No factor pair divides cleanly? Switch to sums: make two numbers add up to 24, or try shapes like (a ± b) × (c ± d) and (a + b + c) × d.

FAQ

Can 4 7 9 12 make 24?

Yes. Every one of them is listed above with step-by-step working.

How many solutions does 4 7 9 12 have?

3 — the list above is exhaustive, so every mathematically distinct way to combine the numbers is shown.

How difficult is 4 7 9 12?

It is rated “Hard” on our four-tier scale, based on whether whole-number intermediate steps suffice, how many distinct solutions exist, and whether the hand includes a two-digit card (10–13).