# 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.

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27.03.2024 We have 18340 solved math problems.

- Adjust numerators

If the numerator of a fraction is increased by 2 and the denominator by 1, it becomes 5/8. If the numerator and the denominator of the same fraction are each increased by 1, the fraction becomes 1/2. Find the fraction. - A rectangle 14

A rectangle is 8 cm long and 5 cm wide. Its perimeter is doubled when each of its sides is increased by x cm. From an equation in x find the new length of the rectangle. - The sum 47

The sum of 3 numbers in an arithmetic progression (AP) is 15. If 1,4,19 are to be added to the above numbers respectively, it formed a geometric progression (GP). Find the numbers. - Increase and decrease

A number is first increased by 20% and the resulting number is then decreased by 10%. Find the overall change in the number as percent.

- Exactly divisibled

Find the least number that can be divided exactly by all the even numbers between 10 and 20 - Solve 27

Solve fraction problem: 9/27 + 3/54 - Series - double GP

In the following series which number will replace the question mark? 4, 32, 16, 128, 64,?

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