Hints for SUM #10

Difficulty: Medium

Spoiler-safe hints for the SUM puzzle of September 27, 2026. Each hint is hidden until you open it; the answer stays hidden until you ask for it.

Hint 1

Target 1 (27): start with 6 + 9 = 15

Hint 2

Target 2 (142): start with 4 × 9 = 36

Hint 3

Target 3 (544): start with 4 + 100 = 104

The answer

Contains the answer. Open only if you are stuck.

4 · 6 · 9 · 12 · 100

  • Target 1: 276 + 9 = 15 · 12 + 15 = 27
  • Target 2: 1424 × 9 = 36 · 6 + 100 = 106 · 36 + 106 = 142
  • Target 3: 5444 + 100 = 104 · 6 × 9 = 54 · 12 × 54 = 648 · 648 − 104 = 544

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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.