Maths practice for 11-year-olds. - page 102 of 229
Number of problems found: 4571
- Sandbox
How many cubic meters of sand are needed to fill the sandbox on the field if it has the shape of a circle with a diameter of 3 m and is 25 cm deep? - Calculate 30281
One angle of the skeleton is 30 degrees larger than the other. Calculate all its angles. - Half-kilo 30151
We have 25 kg of roasted coffee in stock in six bags. I want to turn all the coffee into half-kilo packages for sale. Will we make all the coffee? - Round table
The round table has a diameter of 78 cm. A tablecloth should be sewn on it, extending around the table by 10 cm. How many centimeters of ribbons need to be bought for edging? - Dimensions 30111
The hall has dimensions of 60m, 28m, and a height of 3m. How many hours will it take to paint it if it takes 3 minutes to paint 1 square meter? The walls and ceiling are painted, and the windows take up 1/3 of the total area that needs to be painted. - Surface and volume
Calculate the surface and volume of a cylinder whose height is 8 dm and the radius of the base circle is 2 dm. - Machined 30031
The lathe machined 27 parts in 9 minutes. How many of them work at the same rate per hour?
- Polynomial: 29981
Calculate the value of a polynomial: 14 * 32 - 27:3 + 11 * 4:2 = - Eight-square 29951
How many g of grass seed do we have to buy in the eight-square garden with a side of 20 m if we need 100 g of seed per 8 m²? - Production 29901
Calculate how many people are in production, if there are 1/5 workers on the morning shift, the afternoon shift has 3/10, and 50 people will join the night shift. - How many
How many numbers are less than 222 with a digit sum of 8? - Thousand balls
We must create a thousand balls from a sphere with a diameter of 1 m. What will be their radius? - Three-kilo 29811
A four-kilo turkey is 70 CZK more expensive than a three-kilo turkey. How much is a turkey weighing 2.5 kg? - Worker salary
The worker had a salary of CZK 18,000. During the year, his salary was increased by a quarter. He earned a total of CZK 247,500 for the whole year. From which month was his salary increased? - Cylindrical tank
9.6 hl of water is poured into a cylindrical tank with a bottom diameter of 1.2 m. What height in centimeters does the water reach?
- Christmas 29521
In the autumn, the school canteen bought 50 kg of apples for 12 CZK. If the apples already cost 20 CZK, how many kilograms of apples could they buy before Christmas for the same amount? - A family
A family of four consumes 220 liters of water a day. How many hectoliters of water are consumed by 68 tenants per day? - Minutes 29491
The car will drive 70km in 56 minutes. How many meters will he drive in half an hour? - 140 degrees
Calculate the product of an angle of 140 degrees with the number 3. - Circumference circles
What is the circumference and area of the circle if r = 18cm
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