Maths practice for 11-year-olds. - page 203 of 222
Number of problems found: 4421
- Three Titanics
Three steamers sailed from the same port on the same day. The first came back on the third, the fourth 4th day, and the third returned on the sixth. How many days after leaving, the steamers meet again in the harbor? - Concrete box
The concrete box with walls thick 6 cm has the following external dimensions: length 1.6 m, width 39 cm, and height 32 cm. How many liters of soil can fit if I fill it to the brim? - Cube 3
How many times will increase the volume of a cube if we double the length of its edge? - Cube 2 How many times will increase if the surface area of the cube if we triple the length of its edge?
- Cube
How many times increases the surface area of a cube with an edge 13.1 cm if the length of the edge doubles? - Water pool
What is the water level in a cuboid-shaped pool with a base of 25 m × 10 m when it contains 3,750 hl of water? - Soil pit
Workers dug a pit cube with an edge of 2.5 meters. How many cars shall remove soil if the car suddenly takes 4 m³ of soil? - Unknown number
Samuel wrote the unknown number. Then he had to add 200000 to the number, and the result was multiplied by three. When it was calculated, he was surprised because he would have received the result if he had written the digit to the end of the original num - Infirmary
Two-thirds of the children from the infirmary went on a trip, a seventh went to bathe, and 40 children remained in the gym. How many children were treated in the infirmary? - Athlete
How long length an athlete run when the track is a circular shape radius of 120 meters, and an athlete runs five times in the circuit? - Pytagoriade
Two fifth-grader teams compete in math competitions - Mathematical Olympiad and Pytagoriade. Out of 33 students in class 5 A, 22 students competed in at least one of the competitions. Students who competed only in the Pytagoriade were twice as many who ju - Circle - simple
The circumference of a circle is 683 mm. How long in mm is its diameter? - Odometer
The odometer is driven by the wheel's rotation, which has a diameter of 65 cm. After how many rotations does the wheel turn counter to the next kilometer? - Travel by bus
Five girls are traveling by bus. Each holds in each hand two baskets. Each basket contains five cats. Each cat has five kittens. Three girls get off the bus, and another girl without baskets goes on board. The bus control driver. How many legs are on the - Tons of coal
The coal hopper has a capacity of 285 liters. How many tons is it? The bulk density of coal is 911 kg/m³. - Five girls
Five girls are traveling by bus. Each holds in each hand two baskets. In each basket are four cats. Each cat has three kittens. Two girls exit the bus. How many legs are on the bus? - Direct ratios
Examples of direct ratios from the given report topics: Number of workers Number of products Time per product Number of working hours Amount of earnings - The star
Find the area of the shaded part of a square with a side of 22 cm. - Clocks
What distance will describe the tip of a minute hand 6 cm long for 20 minutes when we know the starting position with finally enclosed hands at each other at 120°? - Two circles
Two circles with a radius of 4 cm and 3 cm have a center distance of 0.5 cm. How many common points have these circles?
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