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Tea Break Brain

Tea set #9

Light brew · three games · about 5 minutes

Cups in this set

Each cup counts when you play it at the level shown here.

A light brew to start with. All three cups are poured at gentle levels, so this set is about settling in rather than stretching.

In this pot: hold it in mind, counting. It opens with Quick Sums and finishes with Number Span.

What is in the pot

CupGameLevelFirst taskTime
1Quick SumsSubtraction12 − 7about 1 min
2Flash GridEasy3 tiles on 3 × 3about 2 min
3Number SpanIn order · Easy3 digitsabout 2 min

The three cups

Cup 1: Quick Sums

Quick Sums, Subtraction: steady mental arithmetic against a gentle clock. Sixty seconds; the first problem is 12 − 7.

Tip: For subtraction, count up from the smaller number instead of down from the larger one.

Cup 2: Flash Grid

Flash Grid, Easy: holding a scattered pattern for a second. The first pattern has 3 tiles on a 3 × 3 grid and stays lit for 1.11 s.

Tip: Look at the shape, not the tiles one by one. Three tiles often make a corner, a little line or a triangle that is easier to keep than three separate spots.

Cup 3: Number Span

Number Span, In order · Easy: carrying a number while it grows. The first number has 3 digits, each shown for 0.8 s.

Tip: Type steadily; there is no clock while you answer.

Every cup in set #9 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.

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