Maths practice for 11-year-olds. - page 28 of 220

Number of problems found: 4398

Difference 82005
Multiply the difference between the numbers 13202 and 23 by the quotient of these two numbers.
Notebooks - purchase
The teacher bought for her class (for each student), in which there are 15 students, notebooks for €0.30, books for €4.50 and special pens for €2.80. How much did they have left in the class fund when they had €200 there?
Calculate 81990
Calculate the edge of a cube with a volume of 150 cubic cm.
Konečný 81976
Mr. Konečný used 0.9 kg of paint to paint an 8 m long and 1.2 m high fence. a) How many kg must he buy when he will paint a 35m long fence of the same height? b) How much paint will Mr. Malík need for a fence 1.5m high and 42m long.
Quadrilateral 81975
The lime pit has the shape of a quadrilateral prism with dimensions of 2m, 1.8m, and 1.5m Calculate the pile volume from the excavated soil, which, due to fluffing, is 20% larger than the volume of the pit.
Unknown 81923
I divide the unknown number by 2 and then add 4 to the result, which gives me 22. What is the unknown number?
Descending 81911
Calculate the digital sum of the given numbers and arrange the results in descending order: 356,1078,39,4402
Dimension of foundations
The foundation pit for building houses has a face of blocks with dimensions of 10 meters, 10 meters, and 2 meters. After a heavy rain, the water is filled to the brim. The pump pumps out 10 m³ of water in 1 hour. In how many hours will the pit be empty?
Saleswoman 81902
Lucka bought a notebook for CZK 28.60 and a notebook for CZK 14.50. How many crowns did the saleswoman round off the price of her purchase? How many CZK did she return to fifty crowns?
Calculate 81899
10 ml of mercury has been measured to weigh 0.135 kg. Calculate the density of mercury and compare it with the density shown in the tables.
Multiple: 81896
Write the nearest smaller multiple: number 7 to number 23 number 5 to number 19 number 6 to number 23 number 10 to number 79 number 6 to number 41 number 3 to number 28
Construction: 81894
Construct a rhombus that has a side length of 5 cm and a height of 4.5 cm. Outline: Analysis: Construction: Method:
Weighs 81870
The ring weighs 28g and has a volume of 2cm³ to find out if it is made of pure gold.
Martin 81857
Martin will be twice as old in 10 years as he was four years ago. How old is she now?
Dimensions 81850
We used the same amount of paint to paint a cuboid with dimensions of 10 cm, 15 cm, and 3 cm to paint the shell of a cone whose radius is 8 cm. How tall is this cone? Calculate its volume in liters.
Calculate 81841
The sum of the lengths of all the cube's edges is 60 cm. How to calculate its volume?
Rectangular 81838
The rectangular pool has dimensions of 12m and 25m. They built a 2-wide sidewalk around the pool and a fence around the sidewalk. How long is the fence if they leave 1 m for the entrance hole?
A pot - volume
Approximately how many liters of water are there in a pot with a base diameter of 32 cm and a height of 25 cm?
Three-eighths 81827
There were buns for lunch at school. The freshmen ate one-eighth of the buns. The sophomores ate two-eighths of the buns. Third and fourth graders ate three-eighths. How many eighths buns are left for the second stage?
Perimeter 81825
Roland rode his bike around the perimeter of the square plot and traveled 5km. What is the length of the side of a square pitch?

Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.