Maths practice for 11-year-olds. - page 151 of 222
Number of problems found: 4421
- Cube Volume from Shell
The area (surface of the shell) of the cube is 93 cm². What is the volume of the cube? - Simple sequence
Continue with this series of numbers: 1792,448, 112, _, _ - Dinosaurs
More than 30 and less than 60 dinosaurs have met at the pond. A quarter of them bathed, and 1/7 saws and the rest gripped. How many were at the pond? How many were there? - Time Puzzle Midnight
A pedestrian met Street Math and asked him what time it was. "Add half the time to midnight to a quarter of the time, and you'll get the exact time." What time was it? - Quadrilateral surface area
Calculate in dm² the surface of a quad whose edges have 1.2 dm, 1.4 dm, and 2 dm. - Twenty
Twenty rabbits are put in 4 cells so that there are a different number of rabbits in each cell containing at least three rabbits. What is the largest possible number of rabbits in one cell? - Dropped sheets
Three consecutive sheets dropped from the book. The sum of the numbers on the pages of the dropped sheets is 273. What number has the last page of the dropped sheets? - Average Speed for Distance
At what average speed does a car have to travel to drive 55 km in exactly half an hour? - Average mark
In the 6th class, the average half-year mark in physics was 1.7. At the end of the year, Matthew improved his grade from 2 to 1, Ivana from 3 to 2, and Elena from 4 to 2. Paul's grade worsened from 3 to 4. The average mark of the whole class thus improved - Strawberry Jam Sugar
Friends Marika and Kate decided to prepare strawberry jam together according to the recipe. They needed 50 g of sugar for 0.5 kg of fruit. How many kilograms of sugar must the friends prepare if they make jam from 2.3 kg of strawberries? - Calculate
Calculate the area cm² diamond with a side length of 9.8 cm and a height on the side of 5 cm. - Two Numbers Ratio Larger
The ratio of the two natural numbers is 2:3. The smaller natural number from this pair is 12. Calculate the larger. - How much
How much money will we pay for 20 planks 4m long, 15cm wide, and 26mm thick when 1m³ of wood costs 4500kč? - Pyramid Surface Area Ratio
The area of a regular quadrilateral pyramid's mantle is equal to twice its base's area. Calculate the pyramid's surface if the length of the base edge is 20 dm. - Natural numbers equation
Find the natural numbers x and y such that: 1/2 = x / y and in addition that: x + y = 6 - Map scale
The rectangular plot has a scale of 1:10000 and an area of 3 cm² on the map. What area does this plot have on a 1:5000 scale map? - Hotel Rooms Count Triples
There are a total of 110 beds in the hotel, which are available in single, double, and triple rooms, while there are three times more triple rooms than single rooms and twice as many double rooms as triple rooms. How many triple rooms are there in total i - Clock Delays Time Shown
The tower clock delays only 55 minutes in an hour. It's noon, and the clock shows the exact time. What time will they show up after four hours? - Paying with Banknotes
The customer paid the amount of CZK 3,200 with the same 100-crown, two-crown and five-crown banknotes. How many banknotes did he use to pay the amount if he paid precisely the amount? - Four Even Numbers Sum
The sum of four consecutive even numbers is equal to 108. Which of the numbers is equal to the smallest of these summands?
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