Maths practice for 11-year-olds. - page 178 of 224
Number of problems found: 4464
- Star equation
Write digits instead of stars so that the sum of the written digits is odd and is true equality: 42 · ∗8 = 2 ∗∗∗ - Centipede Mira
Centipede Miroslava consists of a head and several articles. Each pair has one pair of legs. When it got cold, she decided to get dressed. Therefore, she put a sock on her left foot from the end of the third article and then in every other third article. - Students 4252
Out of 35 pupils in class 15, they went on a trip. What part of the students went on a journey, and what remained at school? - Christmas trees
The salesman sold Christmas trees: spruce for € 22, pine for € 25, and fir for € 33. In the morning, he had the same number of spruce, fir, and pine. In the evening, he had all the trees sold for € 3,600. How many trees does the day salesman sell? - MO-Z5-3-66 tiles
The picture shows square tiles with a side of 10 dm, composed of four identical small rectangles and squares. The circumference of a small square is five times smaller than the circumference of the entire tile. Determine the dimensions of the rectangle. - Take a photo
Four boys are living in a three-story house. Each lives on a different floor. We know this about them: - Josef is a philatelist - Viktor does not live on the top floor and cannot take photographs - Ivan is friends with an amateur photographer from the gro - Speed of clock
How many minutes will the hour hand pass at straight and right angles? - David number
Jane and David train in the addition of decimal numbers so that each of them will write a single number, and these two numbers will then be added up. The last example was 11.11. David's number also had the same number of digits before and after a point. J - Glass aquarium
How many m² of glass are needed to produce an aquarium with a bottom dimension of 70 cm x 40 cm and a height of 50 cm? - The bag
Nelly found an interesting point. An empty bag weighs 4 kg less than the full. An empty bag is five times easier than a full. How many kg weigh things in this bag? - Average speed
The plane from Prague to Warsaw flies 540 km in 1 hour and 12 minutes. Find the average speed. - Department 4220
Draw the line segment AB, AB = 5 cm. Draw a set of points 2 cm away from line AB. What is the district's department? - Three-quarters 4216
The machine moves 36 products in half an hour. How many products will move in three-quarters of an hour? - Calculate 4215
Calculate the length of the side of the rectangle if you know its perimeter and the other side: a) o = 100 m: b = 2.5 m b) o = 80 cm: a = 20 mm c) o = 38.6 dm: b = 45 cm d) o = 88 mm: a = 2.5 cm - Rectangular 4206
The rectangular garden is 81 meters long and 36 meters wide. How long will the square garden's side be in the same area? - Equivalent 4205
They have their own money in the magical land, Fu, Ru, and Mu. Three Mu are equal to five Ru. Six Ru is equal to eighteen Fu. How many is Fu equivalent to one Mu? - Together 4204
Three bowls together have the same price as seven plates. Four bowls have the price of six cups. How many cups are as valuable as 28 plates? - Floating floor
We will put a floating floor in the room, which is 6.5 m long and 5 m wide. It is sold in packs of 1m². One package costs 279 CZK. How many packages will we have to buy, and how much will we pay for them? - Argicultural field
The field has a rectangular shape with a width of 180 m and a circumference of 940 m. How many hectares of the acreage has a field? - Division Which number in division 16 gives 12 and the rest 3?
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