Maths practice for 12-year-olds - page 261 of 307
Number of problems found: 6131
- Yesterday 2846
Erik read one-fifth of the book yesterday. Today he read one-sixth of the book. He has 38 pages to read. How many pages does the whole book have? - Two-fifths 2845
David goes to school by bike and says: "If I go 300 meters further than two-fifths of the way to school, I have just walked one kilometer of the way." How far is David from home to school? - Millimeter 2844
The fastest animal in the world is the cheetah, which reaches a speed of 34 meters per second. One of the slowest animals is the snail, which travels at 1/2 millimeters per second. How many times is a cheetah faster than a snail? - Increased 2843
Which number has the property that if we subtract from its five times increased by five and its three times reduced by 3, we get the original number again?
- Iron cast
What is the weight of cast iron with a volume of 3575 cubic centimeters? The density of the cast iron is 7600 kg/m3 - On the number line
What number is exactly in the middle between 9.8 and -2.4 on the number line? - Dripping 2834
In one day, 168 liters of water flow out of a dripping water tap. How many days will 4.2 cubic meters of water flow out? - According 2831
The owner of the house received two different plans for the new building. One with a scale of 1:100, followed by the builders, and the other with a scale of 1:25, according to which he will finish the interior. In the first plan, his living room was 7 cm - Two-thirds 2829
If we pour one-fifth and then another 50 liters from the barrel, two-thirds of the original volume will remain in the barrel. What is the volume of the barrel?
- Martin 2828
Twelve years ago, Martin was three times older than Pavol. Now, Martin is twice as old as Pavol. How old is Martin now, and how old is Pavol? - Registers 2827
When eight cash registers are open in the grocery store, customers wait for an average of 12 minutes. What will the waiting time be if the other two cash registers open? - Younger 2826
Milan and Juraj are a total of 56 years old. Milan is eight years younger than Juraj. Please find out how old each of them is. - Excavator
The excavator bucket capacity is 0.5 m³. Determine the mass of sand that the excavator picks up. The sand density is 1700 kg/m³. - Originally 2822
There were plums in the basket. They doubled their number and then took 8 plums. They doubled the number of plums left in the basket again and took 8 plums. They doubled the number once more and took 8 plums. Then, there was no plum left in the basket. Ho
- Conservationists 2820
A group of nature conservationists (a total of 28 members) and a sports team (16 members) worked for 7 days to clean up the forest park with an area of 10 ha. How many days would conservationists have to work without the help of athletes? - Two-fifths 2819
The petrol tank is filled to three-quarters of its volume. After running out of 875 liters of gasoline, it was filled to only two-fifths of the volume. How many liters does a full tank have? - Lemonades 2816
Three cakes and two lemonades cost € 3 and 21 cents. Three cakes and three lemonades cost € 3 and 99 cents. How many cents does one cake cost, and how much does one lemonade cost? - Sometimes 2814
Adam was at some of his favorite football team's home games last season. Sometimes, he bought a seat ticket for €9, sometimes a standing ticket for €5. He spent a total of €76. How many times did Adam buy a seat ticket, and how many times did he buy a sta - Obtained 2812
45% of pig iron is obtained from iron ore, and 70% of steel from it. How much steel is made from 100 tons of iron ore?
The barrel is filled with water up to 57% of its volume. When we add two buckets of water, we will fill it to 73% of its volume. What is the volume of the barrel if the volume of the bucket is 12 liters?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
