Maths practice for 12-year-olds - page 288 of 359
Number of problems found: 7167
- Surface and volume od cuboid
The square base of the cuboid has an area of Sp = 36 cm2, and its height is 80 mm. Determine its surface area and volume. - Flour amount
On the first day, a bakery used one third of their flour. On the second day, they used 75% of the remaining flour. On the third day, 120 kg of flour remained. How much flour did they have at the beginning? - Square glass
What is the square window glass area with the side 4 dm? Do you know how many cm² is? - Gingerbread sharing
Johnny and Mary ate 36 gingerbreads together. Johnny ate 14 more gingerbread. How many gingerbreads did Mary eat? How much did Johnny eat? - Playing match
Romania played a match against Canada. Canada won the duel by six goals. They scored a total of ten goals in the game. Find the number of goals scored by Romania. - Book sales
The Harry Potter book was released in the second quarter, and 6,000 copies were sold in this quarter. In the third quarter, it sold 8% more and in the fourth quarter it sold 15% more than in the third quarter. How many Harry Potter books have been sold by - Percentage calculation
What is 15% of 30% of 600? - 1/10 of meter
How many centimeters is one-tenth of 1 meter? - Circle radius
Calculate the circle's radius if the circumference and area are in a 2:5 ratio. - Switzerland - summerjob
Susan and Hannah used to work in a cherry orchard to earn money for a sightseeing trip to Switzerland. They picked 15 trees every day and harvested the entire orchard in 10 days. How long would it take them to harvest the entire orchard if they picked 20 - TV original price
The TV cost € 420 after a 9% discount. How much did he cost before the discount? - Charles Bridge
From 1900 to 1931, Charles Bridge was 15 times older than Frantův Bridge. How old is the Charles Bridge? - Rectangles in circle
I need to fill a circle with a diameter of 4900 cm with how many rectangles, 125x60 or 100x50 cm. - Proportion
Write the following proportion: Eight is to 64 as to 2 is to x - Numbers
a/ I think of a number. If I add 6 to it three times, I get it five times. Determine this number. b/ I think of a number. If I add 8 to its six times, I get a number that is 10 less than its fifteen times. c/ I think of a number that, when increased by 6, - Map scale
The distance between the two cities is 25km. This distance was drawn on the map by a line 5 cm long. What is the scale of the map? - Broken tree
The tree is broken at 4 meters above the ground. The top of the tree touches the ground at a distance of 5 meters from the trunk. Calculate the original height of the tree. - Carousel perimeter
The carousel wheel has a diameter of 138 meters and has 20 cabins around the perimeter. What is the circumference of the wheel? - Dice options
We roll three dice. Write down all the feast options. - Hectoliter into cube
Can 1 hl of water fit into a half-meter cube?
Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
