Hints for SUM #36

Difficulty: Medium

Spoiler-safe hints for the SUM puzzle of October 23, 2026. Each hint is hidden until you open it; the answer stays hidden until you ask for it.

Hint 1

Target 1 (68): start with 1 + 16 = 17

Hint 2

Target 2 (298): start with 4 − 1 = 3

Hint 3

Target 3 (387): start with 1 + 2 = 3

The answer

Contains the answer. Open only if you are stuck.

1 · 2 · 4 · 16 · 100

  • Target 1: 681 + 16 = 17 · 4 × 17 = 68
  • Target 2: 2984 − 1 = 3 · 100 × 3 = 300 · 300 − 2 = 298
  • Target 3: 3871 + 2 = 3 · 4 × 100 = 400 · 16 − 3 = 13 · 400 − 13 = 387

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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.