Maths practice for 11-year-olds. - page 81 of 223
Number of problems found: 4457
- Third interior angle
Find the third interior angle of the triangle ABC where: α = 48°, γ = 65°. - A rope
Paul can cut a rope into equal lengths with no rope left over. The lengths can be 15cm, 18cm, or 25cm. What is the shortest possible length of the rope? - The vase
The vase is a cylinder with a diameter of 1.2 dm. From the upper edge to the water level, it is 20 cm, and the water depth is 35 cm. If it were filled to the brim, how much ml of water would fit in it? - A recipe
A recipe requires 3/4 cups of milk. Paula is making 1/2 of the recipe. How many cups will Paula use? - Calculate 45931
Calculate the area of a circle with a radius of 72.9 cm. Specify it in cm2, and enter only a numeric value in response. - Regularly 45851
Each of the three players draws 3 top cards from the deck of 54 cards and returns one card to the deck below. The first, second, and third players alternate regularly. In which round does the first player draw the card he got rid of in the first round? - Measuring 45801
The aquarium has the shape of a block measuring 80 cm, 30 cm, and 20 cm. The water level reaches 6 cm below the upper edge. How many liters of water are in the aquarium? (1 liter = 1 dm3) - The gift
How much wrapping paper is needed to wrap a cube-shaped gift with an edge measuring 15 cm? - Double six-six
What is the probability that a player in the games of ludo will throw a double six twice? - Sprinkler 45721
The rotary sprinkler has a spray of 18m. How much land can it irrigate from one place? - Describe 45701
The minute hand of the alarm clock is 3.5 cm long. How long will the tip of the hand be described in 1/2 hour? - The collar
The collar on the dress has the shape of an annulus 6 cm wide. The circumference of the inner circle is 31.4 cm. How much is cm² of fabric needed to make one collar? - Glazing workshop
Roof arches have the shape of an equilateral triangle. The length of the side of the arch was 0.6 m and the height 0.52 m. How many m² of glass are needed for glazing 48? - Roxville
The temperature in Rockville decreased by 15 degrees in five hours. What was the average decrease in temperature per hour? Write your answer as an integer. - Calculate 45563
Calculate the weight of a wooden board 18 dm long, two dm wide, and 0.3 dm thick if you know that 1 m³ of wood weighs 660 kg. - Three-digit 45361
How many different three-digit numbers divisible by five can we create from the digits 2, 4, and 5? The numerals can be repeated in the created number. - Defensive 45341
The boys want to build a defensive wall out of the snow for the ballpark. They want it to be 5 meters long and 1.5 meters high. They can make and transfer 50 cm cubes from snow. How many such cubes must he make to build his wall? - Hectoliters 45331
How many hectoliters of water can fit in a pool with bottom dimensions of 10 m and 20 m and a depth of 4 m? - Measures 45301
The races run for 5 km. So far, eight circuits have passed. One circuit measures 400m. How many meters have they run, and how many meters do they have to reach the finish line? - Apples 45291
How much did Jakub pay for 3.5 kg of apples if 1 kg of apples cost 18 CZK?
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