Maths practice for 11-year-olds. - page 115 of 221
Number of problems found: 4418
- The circumference
The circumference of the rectangle is 62 cm. A square whose side is as long as one side of a rectangle has a circumference of 56 cm. What is the area of each shape? - Milk2cheese
From 40 liters of milk, 8 kg of cheese is produced. How many liters of milk are needed to produce 2 kg of cheese? - Block width calculation
The volume of the block is 72 liters, the height is 6dm, and the length is 4dm. What is the width of the block? - Ferry capacity calculation
The ferry transporting people across the river has a transport area of 17mx25 m. How many people can carry a maximum of 50 people per 1 person? - Kerosene in the bottle
The volume of kerosene in the bottle is 10 cm³. Find the weight of the fluid. (its density is ρ = 830 kg/m³) - The number 3
Ski organizers should print the start numbers from 1 to 45. How many times will they use the number 3 when printing? - Number multiplication puzzle
John thought of a number. He multiplied it by four and added 18 to the result, getting ten times the number 8. What number did John think of? - A library
A library has 12,500 fiction books and 19,000 nonfiction books. Currently, 2/5 of the fiction books are checked out, and 2/5 of the nonfiction books are checked out. Of the books checked out, only 1/10 are due back this week. How many books are due this w - Reservoir height calculation
The block-shaped reservoir has 147 hl of water and is 3.5 m long and 2.8 m wide. Calculate its height. - Room people capacity
The room is 240 cm high and has a volume of 48 m³. How many people can work in it when there is 7 m² of floor space per person? - Plot fence cost
A diamond-shaped plot of land has a side of 0.032 km and a height of 17 m. One meter of wire mesh costs € 5.40. How much mesh is needed to fence the area? - Body density floating
A body weighing 2 kg with a 7.8 g / cm³ density is placed in water. Does the body sink? Will he swim (1 = Yes, 0 = No)? - The run
The student ran a 60 m track in 9.5 s on the school playground. What is the average speed of his run? - Purchase money remaining
After the purchase, Eva was left with CZK 360. How much did she initially have when she spent a third of her original money on the purchase? - Pool pipe filling
A block-shaped pool with bottom dimensions of 12 m and 20 m and a depth of 2 m is filled with two pipes. The first pipe flows 6 l of water per second, the second 2.4 hl per minute. How many hours and minutes will the pool be filled 40 cm below the edge? - Metal barrel
A barrel for transporting fuel has a height of 90 cm and a radius of the base of 30 cm. How many square meters of sheet metal are needed to make a barrel? - Juice-soaked glass
1. Find the dimensions of a 5-liter cylindrical container if the height of the container is equal to the radius of the base. 2. There are three dl of juice in a cylindrical glass with an inner diameter of 8 cm. Calculate the area of the juice-soaked porti - Flowerbed tulip planting
The decorative round flowerbed has a diameter of 480 cm. How many tulips can we plant in the flowerbed when we count approximately 25 cm of square land per 1 tulip? - Garden row calculation
Jana dug four rows, which is four-ninths of a garden. How many rows does the garden have? - Clock gear turns
There are two gears in the wall clock. The larger wheel has 54 teeth, and the smaller one has 24 teeth. How many times does the small wheel turn if the big one turns four times?
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