Maths practice for 12-year-olds - page 289 of 347
Number of problems found: 6923
- Different points
Mark 4 different points O, P, R. S. Mark of line OP, OR, OS. Measure the marked lines. - Oil cans
Workers rolled the oil into 115 two-liter and three-liter cans from a full three-hectolitre barrel. How many cans were there? - Syringe count
How many 15ml syringes can be filled from a 0.0045m³ container? Write the result as an integer. - Sheet metal parts
111 square centimeters of sheet metal are used to produce one part. How many of the most parts can we make from sheet metal with dimensions of 3 m wide and 0.75 m long? - Gardens
I have a garden in the shape of a square with a side length of 0.02 kilometers. The neighbor has a large garden, and we share one side of the garden. I bought from a neighbor's garden, and my garden area increased to 5 ares. I. By how many acres I purchas - Pool tiles
How many m² tiles do we need to line the walls and bottom of the pool in the shape of a block 25 m long, 10 m wide, and 180 cm deep? - Land
The land has a rectangular shape, and its surface area is 1.45 hectares. Its width is 250 m. Determine the length of the land. - Siblings
Three siblings had saved up a total of 1,274 CZK. Peter had saved up to 15% more than George and Hannah, 10% less than Peter. How much money did they save for each one of them? - Sweater discount
The sweater was reinforced from 850kc to 340kc. How many percents were merged? - Number difference
The difference between the two numbers is 4/3. If you know that the first number is 50% larger than the second number, specify both numbers. - Square tiles
The room has dimensions of 12 meters and 5.6 meters. Determine the number of square tiles and their largest dimension to cover the floor exactly. - Candy
The price for 1 kg of more expensive candy is 125 CZK. The price for 1 kg of cheaper candy is 100 CZK. We make two different blends of candy. And now. The second blend contains 2 kilograms of more expensive candy and several kg of cheaper candy. The price - Cyclist and car
A cyclist who runs at a speed of 20 km per hour will arrive at the finish in 4.5 hours. How fast does the car have to drive the same route in 2 hours? - Two numbers sum
The sum of the two numbers is 52.5. The first number makes up 75% of the second number. Specify both numbers. - Savings distribution
Milo has 84 euros. He gave his brother 20% of his savings and his sister 25%. Find how much money each has. - Cube dimensions
The red cube has an edge 0.2 dm smaller than the blue cube. The surface of the blue cube is 294 cm². What are the dimensions of the cubes? - Mr. John
Mr. John wants to buy winter apples Spartan. There are two ways to buy: 1) buy apples at the marketplace, where 1 kg costs 15 CZK. 2) Bring the car to the agricultural farm, where the apples are sold for 9 CZK per kilogram. However, he must pay CZK 150 fo - Cubes in block
How many cubes with a 2cm edge will fit in a block measuring 8cm, 10cm, and 12cm? - Beam on platform
A homogeneous wooden beam of length 6.00 m and mass 72.0 kg lies on a horizontal platform high above the ground and overhangs by 1.80 m over the edge of the platform a) Decide whether a person with a mass of 60.0 kg can stand on the overhanging end of the - Mr. Liška
Mr. Liška decided to replace the floors in some rooms of his flat. a) The kitchen is a rectangle with sides 180 cm and 420 cm. How many square tiles with a side of 20 cm long will he need? b) How many packages of tiles must he buy, if in one package there
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