Examples of equations for practice for 12 year olds - page 26 of 59
Number of problems found: 1180
- Poplar
How tall is a poplar by the river if we know that 1/5 of its total height is a trunk, 1/10th of the height is the root, and 35m from the trunk to the top of the poplar? - Construction 7926
Honza had 19 wheels in the kit. He used all these wheels in the construction of tricycles and scooters. How much does he assemble complete scooters, and how many tricycles? Find all solutions. - Hrebienok 7856
A tourist would cover the route from Skalnate Pleso to Hrebienok at a constant speed in 2 hours. His friend would walk the same route from Hrebienk to Skalnaté Pleso in 3 hours. When will they meet if they both go hiking at 9:00? - Construction of road
Six trucks are supposed to be transported for 18 days to construct the road dam. After three days, the transport company sent two more cars to the construction site. How long will it take to carry the material?
- Equation 7848
Solve the equation with the unknown a: 3 (2a + 1) = (a-3) • 4-5 - Double and triple Find the number to which it is true: Its double is five less than its triple.
- Numbers 7841
In the middle between the unknown number and the number 166 is the number a) 164, b) 200, c) 500 d) 1356 What are the unknown numbers? - Smaller 7840
Which number is 2a-b smaller than a + 2b? - Society 7809
There are eight boys and twelve girls in the secret society. How many boys must they accept so that the ratio of boys to girls is 3:4
- Mathematics 7806
Janko has committed that his average grade in mathematics will be exactly 2 at the end of the semester. However, so far, he has received grades 3 and 4. He knows that by the end of the year, he will receive four more grades from the tests. What are the wo - Which
Which decimals, when subtracted, equal 3.89: a - b = 3.89 - Sum of four numbers
The sum of four consecutive natural numbers is 114. Find them. - Eight years ago
The son asks his father how old he is. My father said: I will have twice as much as I had eight years ago in ten years. - Minutes 7720
Miloš goes to school on roller skates at a speed of 18 km/h. The journey takes 15 minutes. What speed does he have to go if he wants to be at school 5 minutes earlier?
- One-third 7708 One-third of the pupils go to school by bus. The other half take a tram, and the remaining ten pupils walk. How many students are in the class?
- Unknown 7699 If I add a third and a half of an unknown number, I get a number 1 greater than 21/6. What's the number?
- Daughter 7658
Dad is 43 years old, and his daughter is 17 years old. How many years ago was a father three times older than a daughter? - Yellows 7650
Stano got a box of dice. Half of them were brown and blue in color, and the others were red, yellow, and green. There were 12 more reds than yellows, 19 more reds, and 5 more greens than yellows. How many cubes were in the box? - Find unknown Find an unknown numerator: 4/8 + _/8 = 1
A cyclist leaves town A, 84 km from town B, and 2 hours later, another cyclist goes from town B to town A at the same average speed of 14 km/h. How far from city B will they fight?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
