Maths practice for 12-year-olds - page 328 of 347
Number of problems found: 6932
- Rounding
The following numbers round to the thousandth: - Decomposition
Make decomposition using prime numbers of number 206. The result is written as prime factors (all, even multiple) - Cars
Cars started at 7:00 AM. From point A, the car runs at 40 km per hour, and from B, the car runs at 70 km per hour. Between A and B is a 250 km long road. When and where will they meet (measured from point A)? - Pigs
Pigs are fed by beet. Beet feed contains 11% dry solids, which is 0.74% of digestible crude protein. How much beet must be consumed in one month (30 days) if the weight of digestible crude protein contained in a daily dose of beet was 0.531 kg? - Playing Cards
Kara has 4 times more cards than Dana. Dana has 4× less than Mary. Together, they have 612 cards. How many cards have each of them? - Ladder
10 meters long ladder is leaning against the wall of the well, and its lower end is 1 meters from this wall. How high from the bottom of a well is the top edge of the ladder? - Bouquet
The gardener tied a bouquet of flowers for eight, and none was left. Then he found that he could tie a bouquet of 6 flowers and also none was left. How many have gardener flowers (minimum and maximum) if they had between 50 and 100 flowers? - Dog II
The journey from a ranger's home to the town is 12 km. Mr. Ranger started from his home and went 6 km per hour. His women came from the town and also went 6 km per hour. The ranger starts the dog and runs in 9 km in 1 hour. The dog goes to the ranger's wo - Liters in cylinder
Determine the height at which level 18 liters of water in a cylindrical container having a bottom diameter 24 cm. - Book
John read the book so that it read 27 pages per day. Maxim read 33 pages a day and read it two days earlier than John. How many pages is the book? - Group
A group of kids wanted to ride when the children were divided into groups of 3 children, one remained. When divided into groups of 4 children, one remains. When divided into groups of 6 children, one remains. After being divided into groups of 5 children, - Total displacement
Calculate the total displacement of the 12-cylinder engine with the diameter of the piston bore B = 8.9 cm and stroke S=1.9 cm of the piston. Help: The crankshaft makes one revolution while the piston moves from the top of the cylinder to the bottom and b - Roots
Calculate the square root of these numbers: - Midpoint of segment
Point A has coordinates [4; -11], and the midpoint of segment AB is the point [17; -7]. What are the coordinates of point B? - Tetrapack
How high should the milk box be in the shape of a prism with base dimensions 8 cm and 7.2 cm if its volume is 1 liter? - Barrel 2
The empty barrel weighs 12 kg. When it is filled with water up to 39% height, it weighs 69 kg. How heavy is a barrel full of water? - Free trains for students
An example of state interference in the market mechanism is the recent controversial action of 17 November 2014 - free travel by train for students and pensioners. The basics of economics say that if the price of a service is low, the quality will also be - Goods
To the market is introducing a new product, the first week is sold at a reduced price. 8 products are sold at an entry price same as 5 products at the normal price. How many percent is the reduced price less than the current price for this product? - Pizza
Pizza with a diameter of 40 cm weights 409 g. What diameter will a pizza weigh 764 g made from the same cloth (same thickness) and decorated? - Slope RR
A line has a rise of 4 and a run of 7. What is the slope?
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