Maths practice for 11-year-olds. - page 129 of 224

Number of problems found: 4479

Salt weight calculation
What is the weight of salt with a volume of 25 dm³? The salt density is 2.16 g / cm³.
Carpet Uncovered Floor Area
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 -14°F over 4 hours. If the temperature changed the same amount each hour, what was the change in temperature each hour?
Area Rate Time
In 2 hours, 100m square, what is an area in 3 hours?
Dog Cans Price Quantity
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?
Clock Hand Angle Lunchtime
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 °
Room Square Carpet Area
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?
Fraction value calculation
Determine the value of the fraction 7/4 of the total of 8000.
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?
Temperature change
The mean temperature change is -3.2°F per day for five days. What is the total change over the five days?
Decorative fence
The rectangular garden is 57 m long and 42 m wide. Calculate how much m² it will reduce if it is enclosed with a 60 cm wide decorative fence.
Water Flow Pool Pump
Fifty liters of water should flow into the pool every minute. In the event of a pump failure, only 0.4 (4/10) of that amount flowed. How many liters of water flowed in every minute?
Last page
Two consecutive sheets dropped out of the book. The sum of the numbers on the sides of the dropped sheets is 154. What is the number of the last page of the dropped sheets?

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