Maths practice for 11-year-olds. - page 16 of 224
Number of problems found: 4480
- Pirates
Pirates captured 1 tonne of gold and hid it in 25 barrels. How many more barrels would the pirates need if they transported 25 kg of gold in each barrel? - Calculate 258
Calculate the volume and surface area of a prism with a trapezoidal base and a height of 9 cm. The base is an isosceles trapezoid with bases of lengths 3 cm and 6 cm and arms of length 2.5 cm. The height of the base is 2cm. - 3 squirrels
We were on a trip to the Beskydy Mountains. On the first day, we saw 3 squirrels and walked 14.3 km. On the second day, we walked more slowly to see more squirrels, so we only walked 8.25 km. On the third day, a squirrel hit Franta on the head with a pine - Cake 3
A cake weighs 2 3/5 kg. What is the weight of 8 cakes? - With fractions
Evaluate following expression with fractions and brackets: 2*(1/3+2/5)-3/5 - Calculate the density
Calculate the density of a body that has a mass of 6.5 kg and a volume of 0.01 m³. - At night
On the night from Thursday to Friday, the temperature on the thermometer dropped to −7°C. On Friday at noon, the temperature rose by 13°C, and in the evening, the temperature dropped by 11°C. On Friday evening, the thermometer showed the temperature: - Asphalt - rolling
A roller for rolling asphalt has a diameter of 80 cm and a width of 1.2 m. How many square meters of road does it roll if it turns twenty times? - Meat 5
2.4 kg of meat costs 292 CZK in the store. How much meat of the same type can I buy here for 2482 CZK? - Quarter of some number
A quarter of an unknown number increased by one hundred is fifty. What is the unknown number? - Third angle
What is the third angle of a triangle if the first two angles have sizes 50° and 60°? - Salad - delicacy
The customer paid € 1.50 for 300g of salad. How much € will he pay for 500 g of salad? - Calculate 423
Calculate the volume and surface area of a cylinder if its height is 40 dm and the diameter of the base is 3 m. - A fraction of an hour
Calculate in minutes: 2/3 of 5 hours. - Perimeter 37
The perimeter of a square is o=18. What is the length of the side and the square? - In the kitchen 2
In a kitchen measuring three by two meters, we want to lay square tiles with sides of 20 cm on the floor. If there are exactly 40 tiles in one package, how many such packages do we need to buy to cover the entire kitchen? (We place the tiles right next to - Running race
The running race consists of two stages. Two-thirds of the competitors completed the first stage, and only three-quarters of them completed the second stage. Only 12 competitors reached the finish line. Determine how many competitors were at the start and - Wands - Wizard
The number promised the wizard Rhododendron that she would teach him a lot about numbers, but he must solve her riddle: My two magic wands measure 63 cm together. One is 7 cm longer. How long are her wands? - Trainers 3
Trainers start in six steps, eight steps, nine steps, and ten steps. Each time they have one trainee left. How many trainees were there? - Number 17
The number of boys in the class is k and the number of girls is m. How many euros will the class cashier collect from them for a theater performance if one ticket costs 4.25 euros?
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