Skip to main content

Browse all solutions

1 2 2 13 = 24: 7 solutions

Difficulty: HardOpen in Solver

2 × 13 − 1 × 2 = 24

  1. 2 × 13 = 26
  2. 1 × 2 = 2
  3. 26 − 2 = 24

7 solutions

  • 13 × 1 × 2 − 2 = 24Steps
    1. 1 × 2 = 2
    2. 13 × 2 = 26
    3. 26 − 2 = 24
  • 2 × 13 − 2 ÷ 1 = 24Steps
    1. 2 × 13 = 26
    2. 2 ÷ 1 = 2
    3. 26 − 2 = 24
  • 2 × (13 + 1 − 2) = 24Steps
    1. 1 − 2 = -1
    2. 13 + -1 = 12
    3. 2 × 12 = 24
  • 13 ÷ (1 ÷ 2) − 2 = 24Steps
    1. 1 ÷ 2 = 1/2
    2. 13 ÷ 1/2 = 26
    3. 26 − 2 = 24
  • 1 × (2 × 13 − 2) = 24Steps
    1. 2 × 13 = 26
    2. 26 − 2 = 24
    3. 1 × 24 = 24
  • (2 × 13 − 2) ÷ 1 = 24Steps
    1. 2 × 13 = 26
    2. 26 − 2 = 24
    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.

FAQ

Can 1 2 2 13 make 24?

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

How many solutions does 1 2 2 13 have?

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

How difficult is 1 2 2 13?

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).