Hints for SUM #47

Difficulty: Medium

Spoiler-safe hints for the SUM puzzle of November 3, 2026. Each hint is hidden until you open it; the answer stays hidden until you ask for it.

Hint 1

Target 1 (36): start with 4 + 7 = 11

Hint 2

Target 2 (64): start with 3 × 25 = 75

Hint 3

Target 3 (543): start with 3 × 4 = 12

The answer

Contains the answer. Open only if you are stuck.

3 · 4 · 7 · 10 · 25

  • Target 1: 364 + 7 = 11 · 25 + 11 = 36
  • Target 2: 643 × 25 = 75 · 4 + 7 = 11 · 75 − 11 = 64
  • Target 3: 5433 × 4 = 12 · 10 + 12 = 22 · 25 × 22 = 550 · 550 − 7 = 543

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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.