Maths practice for 11-year-olds. - page 101 of 226
Number of problems found: 4508
- Find the mean
Find the number between 13 and 29. - Aleš coins
Alex has one coin, Boris and Cyril each have two coins. Aleš has 5 Sk more than Boris and 5 Sk less than Cyril. Note Czech coins are 1, 2, 5, 10, 20, 50 Sk. Aleš has ___ Sk. Boris has ___ Sk and ___ Sk. Cyril has ___ Sk and ___ Sk. Together, they have ___ - Diamond area comparison
Which diamond with a side length of 7.5 cm has: a / largest area, b / smallest area - Six-tonne truck
The platform of a six-tonne truck is 2.20 m wide and 4.20 m long; the side panels are 0.75 m high. How many cubic metres of gravel could be loaded onto the truck with the load levelled to the top of the side panels? How deep a layer of gravel can be loade - Roof repair
To repair the roof, we need 15 pieces of boards 6 m long, 15 cm wide, and 25 mm thick. If 1 m³ of boards costs 500 euros, how many euros will we pay for all the boards? - Ice volume calculation
What is the volume of 320 kg of ice floes in liters? - Number sixth puzzle
If we subtract its sixth from the number's triple number, we get half of that number increased by 28. What is the number? - Cuboid wall area
Hello, I want to ask about the solution and procedure for my task, which is a cuboid with sides a=5 cm, b=4 cm, and c=10 cm. Calculate the area of the blue wall. Calculate the area of the yellow wall. Calculate the area of the green wall. Calculate the su - Triangle bar division
How many identical triangles do the middle bars divide the triangle ▲? - Bus average speed
A bus from Bratislava to Nitra runs for 1 hour and 30 minutes, covering 105 km. What is its average speed? - Divisible by nine How many three-digit natural numbers in total are divisible without a remainder by the number 9?
- Board paint calculation
Štěpán painted a block-shaped steel board measuring 2.2 m, 1.5 m, and 1.6 m twice with a protective coating. How many kilograms of paint would he consume if he used 120 g of paint per 1 m²? - Calculate
Calculate the surface of a regular eleven-sided prism; if the area of its base is 58 cm2, the edge of the base is 6 cm long, and the height of the prism is 21 cm. - Cycling distance
Daddy cycles the distance. 15 km in three-quarters of an hour. What distance will he travel in an hour? How long will it take for the son to cover this distance, which travels at an average speed of 15 km per hour? - Rectangle perimeter division
Divide a rectangle with sides of 60 mm and 84 mm into three smaller rectangles with equal perimeters, drawing and calculating the solution. Find the dimensions of the three rectangles. - Tank painting calculation
We painted a closed cube-shaped oil tank with an edge length of 1.5 meters twice with a protective coating. How many kilograms of paint did we use if 1 kg of paint is enough for 10 square meters? How many liters of oil are in the tank if it is filled to t - Convalescent homes
In 270 convalescent homes, 94,270 vacationers spent part of the holiday a year. On average, how many vacationers per convalescent home? - Isosceles trapezoid
Find the area of an isosceles trapezoid with bases of 8 cm and 72 mm. The height of the trapezoid is equal to three-quarters of the longer base. - Radar signal distance
The electromagnetic signal sent by the radar bounced off the plane and returned in 60 microseconds. How far is the plane? - Pedestrian speed comparison
One pedestrian walked the 16 km track in 3.12 hours Two pedestrians walked the 18 km track in 3.18 hours Which one had a higher average speed on its track?
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