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Totle #6: make 19 from 2, 3, 6, 9 and 10

Sunday, October 18, 2026

SMTWTFS 19 210963

Use all five numbers with + − × ÷ to make 19. Combine two at a time; every result has to be a positive whole number.

A Sunday puzzle, so level 1 of 7 (they get harder from Sunday to Saturday). There were 35 different answers. Harder than 14% of all Totle puzzles, and these five numbers can make 478 different totals.

About this puzzle

A Sunday puzzle, the gentlest day of the week, and a friendly one: thirty-five different answers, and it's easier than most Tōtle puzzles.

With that many answers, almost any good idea leads somewhere. Two of the numbers give you a big head start on 19, and the small ones are flexible enough to tidy up whatever is left. It's a nice puzzle for trying a second or third route once you've found the first.

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How people did

On the day, 6 people played it and 5 solved it (83%).

Medals among the 5 who solved it:

  1. 👑4
  2. 💎1
  3. 🏆0
  4. 🥇0
  5. 🥈0
  6. 🥉0
  7. 👏0

How to think about it

Hints and an answer

Tap one at a time to open it.

Hint 1: think about the target

The last move makes 19. It can add or subtract two numbers you've built, multiply two (19 is prime, so only 1 × 19), or divide a multiple of 19 by the right number (38 ÷ 2, 57 ÷ 3, 76 ÷ 4…). Look at the numbers you have: which of those could you build?

Hint 2: a first move

Try 2 + 3 = 5.

Hint 3: how it ends

The last move is 1 × 19 = 19. So the job is building 1 and 19 from the numbers.

Walk through it

Start from the target. 19 is prime, so the last move is likely a + or a −, or a × 1 once you've already made 19.

Look for a pair that's close. The 9 and 10 add up to exactly 19, so 9 + 10 = 19 straight away. That's most of the work done.

Now the 2, 3 and 6 still have to be used. The neat trick is to turn them into a 1, because multiplying by 1 changes nothing. 2 + 3 = 5, and 6 − 5 = 1.

Put it together: 2 + 3 = 5, 6 − 5 = 1, 9 + 10 = 19, and 1 × 19 = 19.

Show an answer
  1. 2 + 3 = 5
  2. 6 − 5 = 1
    Two numbers one apart make 1, which is handy: multiplying or dividing by 1 leaves a number as it is.
  3. 9 + 10 = 19
  4. 1 × 19 = 19
    1 × leaves 19 as it is: that's how the spare 1 gets used.

One of 35 different answers.

Other ways to get there
  • (9 + 6) + ((2 + 10) ÷ 3)
    Build up to it: 9 + 6 = 15, and 2 + 10 = 12 with 12 ÷ 3 = 4. Then 15 + 4 = 19.
  • (2 × 10) − (3 ÷ (9 − 6))
    Go just past 19 and step back: 2 × 10 = 20, then 9 − 6 = 3 and 3 ÷ 3 = 1. Finish with 20 − 1 = 19.
  • (10 × (6 − 3)) − (2 + 9)
    Or overshoot by more: 6 − 3 = 3 and 10 × 3 = 30, then 2 + 9 = 11. Then 30 − 11 = 19.