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1 4 9 12 = 24: 8 solutions

Difficulty: HardOpen in Solver

9 × 1 × 4 − 12 = 24

  1. 1 × 4 = 4
  2. 9 × 4 = 36
  3. 36 − 12 = 24

8 solutions

  • 4 × 9 − 1 × 12 = 24Steps
    1. 4 × 9 = 36
    2. 1 × 12 = 12
    3. 36 − 12 = 24
  • 4 × 9 − 12 ÷ 1 = 24Steps
    1. 4 × 9 = 36
    2. 12 ÷ 1 = 12
    3. 36 − 12 = 24
  • 9 + 12 − (1 − 4) = 24Steps
    1. 9 + 12 = 21
    2. 1 − 4 = -3
    3. 21 − -3 = 24
  • 9 ÷ (1 ÷ 4) − 12 = 24Steps
    1. 1 ÷ 4 = 1/4
    2. 9 ÷ 1/4 = 36
    3. 36 − 12 = 24
  • 1 × (4 × 9 − 12) = 24Steps
    1. 4 × 9 = 36
    2. 36 − 12 = 24
    3. 1 × 24 = 24
  • (4 × 9 − 12) ÷ 1 = 24Steps
    1. 4 × 9 = 36
    2. 36 − 12 = 24
    3. 24 ÷ 1 = 24
  • (9 − 1) ÷ (4 ÷ 12) = 24Steps
    1. 9 − 1 = 8
    2. 4 ÷ 12 = 1/3
    3. 8 ÷ 1/3 = 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.

Related hands

FAQ

Can 1 4 9 12 make 24?

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

How many solutions does 1 4 9 12 have?

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

How difficult is 1 4 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).