Maths practice for 12-year-olds - page 220 of 347
Number of problems found: 6923
- Flowers Bouquet Colors Count
Two-quarters of the flowers are red. One-third is yellow, and three flowers are blue. The bouquet has a total of __ flowers. - Distance time
The cyclist covered a certain distance in 9 hours. How many hours does a car need to travel four times more if it moves three times faster? - Castle windows
Seven twelfth windows in the castle are in the shape of an n-gon. Six-fourteenths of these windows are quadrilateral in shape, while two-ninths of them are square windows. How many windows are there in the castle if there are 15 square windows? - Garden side measurement
The garden has an area of 1378 m2, side and measures 53 m. How much does side b measure? - Hexagon Area from Radius
Calculate the area of a regular hexagon if the radius of the circle circumscribed is 6.8 cm. - Harvesters
The first harvester will harvest the grain from the field in 20 hours, and the second, the more powerful, will harvest it in 10 hours. How long will it take for both harvesters to harvest this field if the second harvester has to be set up first, which ta - Wheat grinding
By grinding wheat, we get 86% torment. How much wheat do we need to grind to get 7 tons of wheat flour? - Oxygen consumption comparison
A person consumes 20 grams of oxygen in 1 hour, and a jet aircraft up to 3 total of 3/4 tons. How much more oxygen does an airplane use per hour than a human? - Stone square drawing
They drew two stone squares out of 25 stones. Not a single stone must remain. - Cube Edge Size Volume
The road is paved with 2500cm cubic cubes. Calculate the edge size to the nearest millimeter. - Bob traveled
Bob traveled 20 meters to Dave's house. He arrived in 3 minutes. What was his average speed for the trip? - The aquarium
The aquarium has a capacity of 18 liters. When the square bottom is 28 2/3 cm long, what is its height? - Block cube edge The block and the cube have the same volumes of 512 cm3, and the block has edge lengths of b = 6.4 cm and c = 10 cm. Can a cube and a block have the same edge length?
- Find x
Solve: if 2(x-1)=14, then x= (solve an equation with one unknown) - Trapezoid Billboard Area Gain
The advertising agency invented a new shape for billboards to attract attention - a trapezoid. How much more m² of area did they gain if the size of the classic billboard is 5.1x2.4 m and the dimensions of the trapezoidal billboard are 4.2 and 6 m bases a - Unknown number
I think the number. I'll reduce it to its one-third. The result is then increased by one-third, and I get the number 12. - Perpendicular sides
In the ABCDEFGHIJKL, the two adjacent sides are perpendicular to each other, and all sides except the AL and GF sides are identical. The AL and GF sides are twice as long as the other sides. The lines BG and EL intersect at point M. The quadrilateral ABMJ - Clock hands intersection
Calculate exactly when the hour and minute hands on the clock intersect. - Donuts
Find how many donuts each student will receive if you share 126 donuts in a ratio of 1:5:8 - Employees
Of all 360 employees, there are 11/12 women. How many men work in a company?
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