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1 2 2 10 = 24: 8 solutions

Difficulty: HardOpen in Solver

1 × 2 × (2 + 10) = 24

  1. 1 × 2 = 2
  2. 2 + 10 = 12
  3. 2 × 12 = 24

8 solutions

  • 2 × (10 + 1 × 2) = 24Steps
    1. 1 × 2 = 2
    2. 10 + 2 = 12
    3. 2 × 12 = 24
  • 2 + 2 × (1 + 10) = 24Steps
    1. 1 + 10 = 11
    2. 2 × 11 = 22
    3. 2 + 22 = 24
  • 2 × (2 + 1 × 10) = 24Steps
    1. 1 × 10 = 10
    2. 2 + 10 = 12
    3. 2 × 12 = 24
  • 2 × (10 + 2 ÷ 1) = 24Steps
    1. 2 ÷ 1 = 2
    2. 10 + 2 = 12
    3. 2 × 12 = 24
  • 2 × (2 + 10 ÷ 1) = 24Steps
    1. 10 ÷ 1 = 10
    2. 2 + 10 = 12
    3. 2 × 12 = 24
  • (1 + 2) × (10 − 2) = 24Steps
    1. 1 + 2 = 3
    2. 10 − 2 = 8
    3. 3 × 8 = 24
  • (2 + 10) ÷ (1 ÷ 2) = 24Steps
    1. 2 + 10 = 12
    2. 1 ÷ 2 = 1/2
    3. 12 ÷ 1/2 = 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.

Related hands

FAQ

Can 1 2 2 10 make 24?

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

How many solutions does 1 2 2 10 have?

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

How difficult is 1 2 2 10?

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).