Tea set #60
Strong brew · three games · about 4 minutes
Cups in this set
Each cup counts when you play it at the level shown here.
Set #60 is one of the strong ones. Play it when the tea is hot and the room is quiet.
In this pot: hold it in mind, counting, quick hands. It opens with Number Span and finishes with Quick Sums.
What is in the pot
| Cup | Game | Level | First task | Time |
|---|---|---|---|---|
| 1 | Number Span | Backwards · Medium | 4 digits, backwards | about 2 min |
| 2 | Reaction Time | Go or stop | waits 1.25–3.32 s | about 1 min |
| 3 | Quick Sums | Percentages | 10% of 80 | about 1 min |
The three cups
Cup 1: Number Span
Number Span, Backwards · Medium: carrying a number while it grows. The first number has 4 digits, each shown for 0.65 s; type it backwards.
Tip: Chunk the digits as they arrive: 4-7-2 becomes forty-seven, two. Two chunks are easier to carry than five singles.
Cup 2: Reaction Time
Reaction Time, Go or stop: waiting calmly and moving the instant something changes. The first eight waits fall between 1.25 and 3.32 s, and 3 of those eight signals say Stop.
Tip: Play several rounds in a row on the same device before you judge a result; single rounds vary.
Cup 3: Quick Sums
Quick Sums, Percentages: steady mental arithmetic against a gentle clock. Sixty seconds; the first problem is 10% of 80.
Tip: Percentages are friendlier as fractions: 25% is a quarter, 75% is three quarters, 20% is a fifth.
Every cup in set #60 has a fixed seed, so anyone who opens this set gets the same patterns, trails, sums and waits. Your own ticks and results are kept only in this browser.