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3 9 9 9 = 24: 3 solutions

Difficulty: EasyOpen in Solver

9 + 9 − (3 − 9) = 24

  1. 9 + 9 = 18
  2. 3 − 9 = -6
  3. 18 − -6 = 24

3 solutions

  • (9 × 9 − 9) ÷ 3 = 24Steps
    1. 9 × 9 = 81
    2. 81 − 9 = 72
    3. 72 ÷ 3 = 24
  • 3 × (9 − 9 ÷ 9) = 24Steps
    1. 9 ÷ 9 = 1
    2. 9 − 1 = 8
    3. 3 × 8 = 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 3 9 9 9 make 24?

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

How many solutions does 3 9 9 9 have?

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

How difficult is 3 9 9 9?

It is rated “Easy” 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).