Brain teasers with numbersThree minutes a day. Free number games for mental math, memory and search
Number brain teasers are short games where you read, remember, add or search for numbers against the clock. Unlike quizzes and puzzles where you sit and think, MIKIRI's number games are brain teasers where you look, remember and answer fast. All you need is single-digit addition and reading numbers. Each round takes about a minute, so three in a row makes a nice break.
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Today's 3-minute brain teaser
Not sure where to start? Play one round of each, in this order. It begins easy and ends with the one that needs the most focus.
Minute 1 ยท Warm-up
Tap scattered numbers 1, 2, 3 and onward. Get used to searching for numbers with your eyes.
Minute 2 ยท Main event
Add up numbers in your head as they appear and answer the total. Let go of each number and keep only the running sum.
Minute 3 ยท Finisher
Read a number that appears for a split second. The digits grow or the display gets shorter step by step.
Pick by difficulty: 7 number brain teasers
โ Easy
Just find the number and tap. Good for a first try or playing with kids.
โ โ Medium
Remember and add. They get harder gradually, so you find your own limit.
Set the digits and display time yourself and see how many digits you can hold.
โฑ a 30-second to 1-minute test
โ โ โ Tough
Remember the order, pick from a stream. For players who are used to it.
All seven at a glance
| Game | What you do | Difficulty | Math |
|---|---|---|---|
| ๐ข RENBAN | Tap numbers from 1 in order | โ | none |
| โก MATCH | Pick the number that matches | โ | none |
| ๐ FLASH | Read a number shown for an instant | โ โ | none |
| ๐งฎ ANZAN | Add the numbers in your head | โ โ | single-digit addition |
| ๐ NAGARE | Read a moving number | โ โ | none |
| ๐ฒ ZANZOU | Recall the order of vanished numbers | โ โ โ | none |
| ๐ SENKO | Pick only the gold digits from a stream | โ โ โ | none |
Play with family and friends
Tips for number brain teasers
A note about brain teasers
MIKIRI's number games are entertainment you can enjoy as a brain teaser. We do not claim that playing makes you smarter, improves memory or math skills, or reduces forgetfulness. Play them as a light break.
See what they look like
Number brain teasers FAQ
Are these number brain teasers free?
Yes. All of them are free, with no account and no app to install. They run in your phone or desktop browser.
Can I play if I'm bad at math?
Yes. Only ANZAN uses arithmetic, and it is single-digit addition. The others are about finding and remembering numbers.
Where should I start?
Try the 3-minute course in order (RENBAN โ ANZAN โ FLASH). For easy ones only, start with RENBAN and MATCH.
Can kids play?
Yes. If they can read numbers, they can start. Begin with the easy RENBAN and MATCH, then move on to FLASH or ANZAN.
Are these good brain games for seniors?
Older adults can play them easily: you only tap, numbers are shown large, and every game starts easy and gets harder step by step. Take a break if your eyes feel tired. We do not claim any effect on brain function.
How many minutes a day should I play?
There is no rule. A round takes about a minute, so three rounds like the 3-minute course make an easy routine.
Do I need to download an app?
No. Open the page in your phone or desktop browser and play right away.
Will it make me smarter?
MIKIRI is a set of games to enjoy as brain teasers; we do not claim they make you smarter or improve memory. Your record is your result in that game.
Are records saved?
Your bests and play days are kept in this browser; scores that make the world ranking are stored on the server.
โปMIKIRI games are for entertainment and self-measurement. They are not medical tests, diagnosis or treatment, and do not guarantee better memory, math skills or prevention of dementia.