Remember the numbers

Remember the numbers gives you three seconds to look at a scatter of digits before they vanish. Then the screen is empty, and you have to touch the spots where those numbers sat, starting from the lowest and working upwards.

Get the order and the positions right and a fresh set appears. The sequences grow longer as you go. One wrong touch ends the run and sends you back to the very beginning, which is what the developer means when it calls this a survival mode. The only target mentioned is your score, and the aim is to push it as high as you can.

It is a memory test built on numbers rather than a sum-solving game: you never add anything up. What matters is holding two things in your head at once, where each digit was and how the digits rank against each other.

Start a new game and watch closely while the numbers are showing. You get three seconds. Once they disappear, touch the place where the smallest number was, then the next smallest, and carry on in ascending order until every position has been touched. A correct round brings up new numbers. A mistake sends you back to the start.

Spend the three seconds on positions as much as values, because the touches are made on a blank screen. Spotting the lowest number first gives you your starting point. Each successful round lengthens the sequence, so expect to hold more spots in mind the further you get, and treat every touch as final.

A number memory game played in a portrait frame. The instructions describe input as touching the screen. Play is one continuous run: a failed round resets you to the beginning, and your score is the only measure of progress.

Number Arrange also deals in putting numbers into their proper order, by swapping boxes on grids from 3x3 up to 7x7. Stickman Mental Math keeps the digits but has you build sums to hit a target.