Maths practice for 12-year-olds - page 139 of 355
Number of problems found: 7085
- Translate
Translate the following mathematical statement into an algebraic expression or equation. 1. Nine less than the quotient of a number and 3 2. The ratio of 3 and the sum of 4 and an unknown number 3. Eighty is the product of 4 and g 4. The sum of x and 18 i - Pump tank filling
Pump with an output of 3/8 hl of water in 1 min. How long does filling a 3/4 cubic meter tank with water take? - Part-time workers
On Saturday, 210 part-time workers arrived in the village. One hundred five part-time workers worked in the first field, 60 in the second. The other part-time workers worked in the third field. They all worked in equal groups. How many workers worked in e - Cube cutting division
How many small cubes do we get when we cut a cube with an edge of 27 cm into cubes with an edge of 3 cm? - Cycling trial
The racer in the cycling time trial rode at a speed of 12 meters per second. How many km has he covered in 3/4 hours? - Notebook student
At the beginning of the year, they received 600 notebooks. There were twice as many unlinked as lined ones. How many students are in the class when each has 16 unlined notebooks? - 5 books
Five books cost $28.75. Justin wants to buy eight similar books. He has $50. Does he have enough? - An amusement
An amusement park sold 40 child tickets. The other ten tickets it sold were adult tickets. What is the ratio of the number of adult tickets to the number of child tickets? Write your answer as two numbers separated by a colon (for example, 2:3). - A swimmer-training
A swimmer-training program has 26 students specializing in butterfly stroke, 24 specializing in breaststroke, and 29 specializing in backstroke. Of these students, five specialize in all three strokes, five specialize in only the breaststroke and the back - Empty aquarium
How much does an empty aquarium weigh with dimensions: length = 40 cm, width = 30 cm, height = 20 cm, if 1 dm² of glass weighs 300 g? Calculate its weight in kilograms. - Cylinder container
If the cylinder-shaped container is filled with water to a height of 5 dm, it contains 62.8 hectoliters of water. Calculate the diameter of the bottom of the container. Use the value π = 3.14. - Fire fighting
The cuboid-shaped fire fighting tank is 6 m long and twice as wide. What is the height of the tank if the firefighters fill the empty tank in 0.5 hours with a hose flow rate of 12 liters per second? - Tank water
Forty-eight liters of water are now in the vertical cylinder-shaped water tank. The water reaches a height of 27 cm. After an all-day downpour, water reaches a height of 72 cm. How much water will there be in the tank? - Balthazar step length
Balthazar walked ten steps 7.4 meters. How long is Baltazar? - Evaluate expression
Evaluate the following expression: 5 to the power of 2 - (4x4) divided by two = - Photo height proportion
While photographing the class, Henry noticed that he was only 8 cm tall in the photo, while Patrik standing next to him was 8.5 cm tall. Based on his height, Henry calculated that Patrik must measure 17 dm. How tall is Henry? - 540 pupils
Five hundred forty pupils enrolled in the school group, which is a fifth more than the group's capacity. How many pupils is the capacity of the group? - Electric wire
William has a piece of wire that measures 1 yard long. He will use wire to fix several electrical outlets in his house. How many inches long is the wire? Solve this problem using bar diagrams. - Main/central vertex
ABC is an isosceles triangle with base BC and central vertex A. The angle at vertex A is 18°. What will be the size of the angle at vertex B? - Shortcut
The road from the cottage to the shop 6 km away leads either along a straight road that the bicycle can drive at a speed of 18 km/h or by "shortcut". It measures only 3.6 km. But the road from the cottage is all uphill - at a speed of 8 km/h, you can go h
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