Length - practice for 12 year olds - page 15 of 61
Number of problems found: 1206
- Kilometers 65444
The cyclist will ride 42.5 km in 2.5 hours. How many kilometers will he cover in 4 hours and 15 minutes? - Approximately 64934
How many kg of paint will we use to paint the walls and ceiling of a room with a length of 9m, a width of 6m, and a height of 3.2m if 1kg of paint is enough for approximately 6m square? Subtract 6 square meters from the surface of the walls, which are the - Children's 64844
An architect has two plans for the same apartment at different scales. On the first plan, with a scale of 1:20, the length of the children's room is 20 cm. What is the children's room size on the second plan with a scale of 1:50? - Rectangular 64554
We must draw a square grid on a rectangular plate measuring 154 cm and 210 cm. What should be the side length of the largest possible box? How many fields will be on the board?
- Precisely 64114
We painted a wooden cube with an edge 4 cm long with green paint over the entire surface. Then we cut it into small cubes with an edge length of 1 cm. The number of cubes that have precisely two faces colored green is: - Original 63984
If we reduce the length of the cube edge by 30%, this reduced cube has an area of 1176 cm². Specify the edge length and volume of the original cube. - Comprises 63694
The 10m long bar comprises 4, 8, 3, and 6 equal parts. Express the length of one piece as a decimal number. - Sufficient 63464
The fence around the garden measures 360 m. Of these, 72 18/20 m are damaged and must be repaired. How many meters of fence is sufficient? - Lengths 63174
The block has a square base of 36 dm2, and its height is 1/3 of the length of the base edge. Find the sum of the lengths of all edges of a block.
- Hundredfold 63144
The length of the radius of the rotating cylinder base is 5 m. You calculate the radius of an equally high cylinder, the volume of which is a hundredfold. - Two boys 2
Two boys cycled around a cycling track. After cycling 3/5 of the distance, they had covered 54 meters each. Calculate the total distance the two boys will cover when they cycle around the track once. - Kilometers 62274
In one city, the distance between two adjacent city edges on a map with a scale of 1:500000 measures 48 mm. What is the actual distance between these city outskirts in kilometers? - Library
They packed books in the library. They used 45 cm of wrapping paper per book. Wrapping papers are sold in rolls of 3 meters. How many such roles do they need to wrap 20 books? - Project 62074
The 350 m long road is shown on the plan by a 3.5 cm long line. What is the scale of the project?
- Circumference 61944
Calculate the volume and surface of the planet Venus if its circumference is 12,000 km. - A bamboo
Bamboo is 26 2/5 meters long. If it is cut into 12 pieces, how long will each piece be? - The height of prism
A right triangle forms the base of the vertical prism with perpendiculars 30 cm and 40 cm long. This prism has the same volume as a cube with an edge length of 3 dm. Find its height in cm. - Rectangular field 4
Find the perimeter of a rectangular field whose length measures 5.20 m and its width measures 3.4 m. (Use the formula: Perimeter= 2L+2W) - The wire
A 5/6 meter wire is to be cut into pieces that are 1/12 meter long. How many pieces can be cut from the wire?
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