Practise mathematics online - the new site of Mathefritz

Maths problems online!

Mathematics exercises PDF and interactive

Practice maths exercises online,

that is our motto! The optimal learning success is achieved through the combination of worksheets, online tasks and learning videos. For this purpose, we use the various possibilities of interactive content. This makes learning and practicing mathematics fun. And there is a direct feedback to all exercises on this page of Mathefritz.

Just printing out worksheets was yesterday!

Fit in Maths online

Get fit in maths online!

Maths exercises grade 4 and online exercises for grade 5 are best represented here at the moment. 

New maths tasks are added all the time. 

On each page you can practice interactively and solve maths problems online! Just check back later!

By the way, we are building the site multilingually. In English, Spanish and French! 

However, the task sheets and interactive online exercises will not initially be available in all languages. 

Interactive online tasks

Have tasks read aloud

Almost all tasks get an audio feature as an explanation!


Or as math dictation:


Exercise books from Mathefritz

The online maths exercises go with the new exercise books. The new exercise books contain the solutions, but the concept is: enter the solutions in your exercise book and check the result online. This way you repeat the exercise and get direct feedback!

Maths tasks - Fractions !

Maths exercises for fractions: learn fractions completely with many explanations and exercises as well as worksheets to print out!

We start with simple fractions, learn to shorten and expand fractions. When we are able to do this, we calculate with decimal numbers, convert them into fractions and also learn how to convert them into percentages.

Now we are fit for calculating with fractions: Addition, subtraction, multiplication and division. Word problems for fractions must not be missing!

Maths worksheets

Maths exercises online grade 2 - Here you will find the latest maths exercises for grade 2 in primary school! Lots of interactive maths exercises online!

Time online - Online clock

What time is it ... Time online worldwide...

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Measure and draw angles interactively

Calculate angles online ∠ Angle interactive exercises...

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The interactive learning clock - 5 minute clock

Interactive Learning Clock 5 Minute Steps Interactive Learning Clock 5...

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Multiplication tables memory online

Multiplication tables memo games online Multiplication tables memo games online - learn...

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Learning the multiplication table through play

Playfully learn the multiplication table 🎲 Practice the 1x1 online...

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1x1 Complete Turning Game Wooden Cubes online

Multiplication tables wooden abacus online Learn the multiplication tables with...

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Series of 10 multiplication tables - 1x1 Learning

Multiplication tables 10 series worksheet PDF & online interactive...

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Series of 9 multiplication tables - 1x1 Learning

Multiplication tables 9 series worksheet PDF & online interactive...

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Mathefritz Class 4 - "Fit for grammar school"

Maths problems in grade 4: Are you fit for grammar school? In grade 4, we calculate many maths problems online that will be needed again later for grade 5! Here we calculate with numbers up to a million or even quadrillion, text problems and factual problems. A very important topic is written addition and subtraction.

Fit for high school

Fit for high school in math - tasks online...

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Diagrams class 4

Diagrams class 4 - create diagrams online diagrams...

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Mental arithmetic problems grade 5

Mental arithmetic exercises class 5 🤔 Practise mental arithmetic 🤔 online...

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Word problems 4th grade - Fit for high school

Solve word problems 4th grade online 📝 Text problems and...

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Written addition - listening task

Listen to the task. Write down the numbers and add them up....

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Written addition with carry

Written addition with carry-over - online practice Written...

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Written addition worksheets

Written addition worksheets online & PDF Written addition...

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Comprehension questions about arithmetic expressions

Do you understand the tasks correctly? Pay attention to the...

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Maths exercises

Maths exercises class 5 - practise classically with the exercise books from Mathefritz! These four exercise books have been created especially for the 5th grade!

Maths exercises for fractions. The exercise book with exercises for simple fractions. Soon you will find many maths problems from this booklet online. You can calculate them all interactively online. There are 60 pages of exercises in the booklet. 

With this booklet you can practise "Calculating with sizes in class 5". We calculate with:

  • Lengths
  • Weights
  • Times
  • Currencies

Soon many exercises from the booklet will be online here.

The comprehensive booklet with 84 pages on basic arithmetic. We practise arithmetic laws in grade 5, everything you need to calculate in the first 3-4 months of secondary school. Soon you will find many maths problems online from the book. So you can check your results directly!

Practise mental arithmetic. The book contains exercises for addition, subtraction, multiplication and division. You should be able to do all these exercises in your head. We are working on putting all the exercises from this book online.