Hints for SUM #1

Difficulty: Hard

Spoiler-safe hints for the SUM puzzle of September 18, 2026. Each hint is hidden until you open it; the answer stays hidden until you ask for it.

Hint 1

Target 1 (38): start with 3 + 5 = 8

Hint 2

Target 2 (82): start with 3 + 5 = 8

Hint 3

Target 3 (539): start with 3 + 15 = 18

The answer

Contains the answer. Open only if you are stuck.

3 · 5 · 6 · 15 · 30

  • Target 1: 383 + 5 = 8 · 30 + 8 = 38
  • Target 2: 823 + 5 = 8 · 6 × 15 = 90 · 90 − 8 = 82
  • Target 3: 5393 + 15 = 18 · 6 − 5 = 1 · 30 × 18 = 540 · 540 − 1 = 539

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SUM

Five numbers, four operations, three targets. Combine the numbers with + − × ÷ to hit each target exactly. The same puzzle for everyone, in every language.