# Mathematics

We offer practice word problems from elementary and high school mathematics. In the 12 years of the portal's existence, we have collected and solved more than 18,000 word problems. If you find an error in our solution, please report it to us. We are happy to fix it and learn new things.Most of the problems were sent us by the students to improve math reasoning. We try to develop logical and critical thinking in children and youth. We collect examples from pupils who cannot calculate them or just want to confirm the correctness of their procedure and result.

**We consider mathematics a carrier of common sense**, without which succeeding in a further career or business is more challenging. We develop creative, critical thinking. Everything can be proven in mathematics, derived from basic knowledge (axioms). For example, each solution to the example can be verified by a correctness test. We will help you with our portal with math questions and problems with their solutions. If you are looking for math material, getting ready for a prize, a graduate, a monitor, or a nationwide knowledge test is also right here. In addition to examples, we also offer online math calculators.

#### News

02.09.2024 We have the beginning of the school year. It was Sunday. Next school year, the school gates will open exactly on the first of September.21.08.2024 Today is the anniversary of the occupation of Czechoslovakia by Soviet army. They occupied the Czech Republic and Slovakia for about 30 years. History repeats itself...

22.07.2024 Today is Ludolph's number day, constant π (pi) is approximately 7/22 and today is July 22. Happy birthday pi!

- A train 5

A train travels from Brno to Ass at a speed of 45 km/h and return back at the speed of 36 km/h. Find the average speed of the train. - A train 4

A train passes two bridges of 400 m and 260 m in 25 sec and 18 sec respectively. Find the length and speed of the train. - A circular track

The inner circumference of a circular track is 220 m and the width of the track is 7 m. Calculate the cost of putting up a fence along the outer circle at the rate of 50 USD/m. - Decorations 3

Each bundle has 48 red and white roses. in each bundle there are 30 red roses ad the rest are white. How many white roses are there in all?

- Temperature bellow zero

At 3 PM, the temperature is 12 F. It then began dropping 2 F every hour for 7 hours. What was the temperature after 7 hours? - A boat 4

A boat travels 25 km upstream in 5 hours and 25 km downstream in 2.5 hours. If the boat increased its speed by 3 km/h, it would take 1 hour less to travel the downstream distance. Find the speed of the stream. - Chocolate bars

Share 26 chocolate bars among 3 friends so that they all get the same amount of chocolate bar and there is nothing left over. How many chocolate bars will each friend get

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