Subjects

Knowunity AI

Open the App

Subjects

MatematikaMatematika4,282 views·Updated Jun 14, 2026·1 page

Přijímací zkoušky - Matematika

user profile picture
Veronika Bezpalcová@veronikab_nyx7v

Matematika může vypadat složitě, ale ve skutečnosti se skládá z...

1
of 1
# CO UMET?

::256
た
2446
17:289
13164
18-324
14466
1986-1
15225
200.400

$73,74$
$
\Pi = \frac{22}{7}$

Rozklos de SouEN
422466 (406) (46)
2

Matematické základy pro sedmáky

Číslo pí (π) se rovná přibližně 22/7 nebo 3,14 a používá se při počítání s kruhy. Bez něj se neobejdeš u kruhů ani válců.

Rovnice jsou jako hádanky s neznámou. Někdy mají jedno řešení, někdy nekonečně mnoho a někdy vůbec žádné. Tvoje úloha je najít hodnotu x, která rovnici vyřeší.

Aritmetický průměr počítáš tak, že sečteš všechna čísla a vydělíš jejich počtem. Například (1+3+8)/3 = 4. Je to prostě "typická hodnota" ze všech čísel.

Nezapomeň na jednotky - kilometr má 1000 metrů, hektar je 10000 m² a kubický decimetr je vlastně jeden litr. Tyto přepočty se ti budou hodit pořád.

Tip: Pythagorova věta a2+b2=c2a² + b² = c² platí jen pro pravoúhlé trojúhelníky - zapamatuj si to!

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content in Matematika

9

Most popular content

9

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user

MatematikaMatematika4,282 views·Updated Jun 14, 2026·1 page

Přijímací zkoušky - Matematika

user profile picture
Veronika Bezpalcová@veronikab_nyx7v

Matematika může vypadat složitě, ale ve skutečnosti se skládá z několika základních oblastí, které každý zvládne. Pojďme si projít nejdůležitější věci, které potřebuješ umět - od geometrie až po finanční matematiku.

1
of 1
# CO UMET?

::256
た
2446
17:289
13164
18-324
14466
1986-1
15225
200.400

$73,74$
$
\Pi = \frac{22}{7}$

Rozklos de SouEN
422466 (406) (46)
2

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

Matematické základy pro sedmáky

Číslo pí (π) se rovná přibližně 22/7 nebo 3,14 a používá se při počítání s kruhy. Bez něj se neobejdeš u kruhů ani válců.

Rovnice jsou jako hádanky s neznámou. Někdy mají jedno řešení, někdy nekonečně mnoho a někdy vůbec žádné. Tvoje úloha je najít hodnotu x, která rovnici vyřeší.

Aritmetický průměr počítáš tak, že sečteš všechna čísla a vydělíš jejich počtem. Například (1+3+8)/3 = 4. Je to prostě "typická hodnota" ze všech čísel.

Nezapomeň na jednotky - kilometr má 1000 metrů, hektar je 10000 m² a kubický decimetr je vlastně jeden litr. Tyto přepočty se ti budou hodit pořád.

Tip: Pythagorova věta a2+b2=c2a² + b² = c² platí jen pro pravoúhlé trojúhelníky - zapamatuj si to!

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content in Matematika

9

Most popular content

9

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user