Hints for SUM #48

Difficulty: Hard

Spoiler-safe hints for the SUM puzzle of November 4, 2026. Each hint is hidden until you open it; the answer stays hidden until you ask for it.

Hint 1

Target 1 (54): start with 1 + 17 = 18

Hint 2

Target 2 (87): start with 1 + 8 = 9

Hint 3

Target 3 (439): start with 8 × 17 = 136

The answer

Contains the answer. Open only if you are stuck.

1 · 3 · 8 · 10 · 17

  • Target 1: 541 + 17 = 18 · 3 × 18 = 54
  • Target 2: 871 + 8 = 9 · 10 × 9 = 90 · 90 − 3 = 87
  • Target 3: 4398 × 17 = 136 · 10 + 136 = 146 · 3 × 146 = 438 · 1 + 438 = 439

Play this puzzle Archive

SUM

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