Hints for SUM #34

Difficulty: Medium

Spoiler-safe hints for the SUM puzzle of October 21, 2026. Each hint is hidden until you open it; the answer stays hidden until you ask for it.

Hint 1

Target 1 (34): start with 2 × 15 = 30

Hint 2

Target 2 (140): start with 2 × 100 = 200

Hint 3

Target 3 (369): start with 2 × 15 = 30

The answer

Contains the answer. Open only if you are stuck.

1 · 2 · 4 · 15 · 100

  • Target 1: 342 × 15 = 30 · 4 + 30 = 34
  • Target 2: 1402 × 100 = 200 · 4 × 15 = 60 · 200 − 60 = 140
  • Target 3: 3692 × 15 = 30 · 1 + 30 = 31 · 4 × 100 = 400 · 400 − 31 = 369

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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.