Maths practice for 11-year-olds. - page 128 of 222

Number of problems found: 4431

Children's 8246
We prepare a pile of sand in the shape of a cone with a height of 1 m and a diameter of 1.6 m. We prepare it for the children's sandpit. What volume of sand does this pile occupy?
The chocolate
The entire chocolate has 8 by 4 pieces and weighs 160g. Express with a fraction how much of the chocolate we ate (according to the picture, we ate 9 squares of chocolate). How many grams of chocolate did we eat?
Avg speed of flight
The student's vice adventure had a 2,367 km flight. If their travel time was 2 hours and 56 minutes, what was their average speed in kilometers per hour?
Density 8238
What is the weight of salt with a volume of 25 dm³? The salt density is 2.16 g / cm³.
Square-shaped 8234
In a square-shaped room with a side of 4 m, a rectangular rug with dimensions of 2.5 m and 3 m is laid on the floor. How much floor is not covered with carpet?
Change in temperature
The starting temperature is 21°C, and the highest temperature is 32°C. What is the change in temperature?
Wheel turns
The diameter of the motorcycle wheel is 55 cm. How often does a motorcycle wheel turn on a 5 km long road?
Speed of car
In 2 hours 40 mins, a car travels 100km. At what speed is the car traveling?
Soda factory
The soda factory produced 50 hl of lemonade, which they filled into 2 l bottles. How many bottles did they fill?
Temperature change 2
The outside temperature changed -14F over 4 hours. If the temperature changed the same amount each hour, what was the change in temperature each hour?
Square 8198
In 2 hours, 100m square, what is an area in 3 hours?
Identical 8197
Boris paid 23 euros and 40 cents for nine identical cans for a dog. How many cans can be bought for 30 euros or 80 cents? Turn your euro into cents.
Cyclist
Cyclist drives 5 km in half an hour. How long will you drive in 3 hours?
Dance group
The dance group formed groups of 4, 5, and 6 members. Always one dancer remains. How many dancers were there in the whole group?
Describe 8188
Lunch is served from 12:10 to 12:35. What angle will the little hour hand describe during this time? a) 12 ° b) 12.5 ° c) 13 ° d) 42 °
Square 8185
My room is square. One wall is 2.8 meters long. I have a rug on the floor covering half my room's area. What area does the carpet cover?
Barter
There is exchange trade on the market. We know that for two sheepskins, we get three goat skins. We also know that we get four goat skins for six rabbit skins. How many rabbit skins do we get for four sheepskins?
Determine 8180
Determine the value of the fraction 7/4 of the total of 8000.
Cone-shaped 8170
How many cone-shaped cones will we have to take to fill 20 l of creams (to the brim) if the cone has an inner base diameter of 6 cm and a height of 8 cm. Make a drawing, and write the answer.
Water tank
What is the height of the cuboid-shaped tank with the bottom dimensions of 80 cm and 50 cm if the 480 liters of water reach 10 cm below the top?

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