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1 2 12 12 = 24: 7 solutions

Difficulty: HardOpen in Solver

12 × (1 + 2) − 12 = 24

  1. 1 + 2 = 3
  2. 12 × 3 = 36
  3. 36 − 12 = 24

7 solutions

  • 12 − 12 × (1 − 2) = 24Steps
    1. 1 − 2 = -1
    2. 12 × -1 = -12
    3. 12 − -12 = 24
  • 12 − 12 ÷ (1 − 2) = 24Steps
    1. 1 − 2 = -1
    2. 12 ÷ -1 = -12
    3. 12 − -12 = 24
  • 12 + 12 × (2 − 1) = 24Steps
    1. 2 − 1 = 1
    2. 12 × 1 = 12
    3. 12 + 12 = 24
  • 12 + 12 ÷ (2 − 1) = 24Steps
    1. 2 − 1 = 1
    2. 12 ÷ 1 = 12
    3. 12 + 12 = 24
  • (2 − 1) × (12 + 12) = 24Steps
    1. 2 − 1 = 1
    2. 12 + 12 = 24
    3. 1 × 24 = 24
  • (12 + 12) ÷ (2 − 1) = 24Steps
    1. 12 + 12 = 24
    2. 2 − 1 = 1
    3. 24 ÷ 1 = 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 2 12 12 make 24?

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

How many solutions does 1 2 12 12 have?

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

How difficult is 1 2 12 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).