Maths practice for 12-year-olds - page 244 of 355
Number of problems found: 7082
- Cyclist time
A car traveling at 75 km/h will drive from place A to place B in 3/4 hours. How long does it take for a cyclist to get there at a speed of 25 km/h? - Difference heights
Determine the difference between the altitudes of the Sněžka peak (1,602 m above sea level) and the level of the Dead Sea (-394 m above sea level). - Sugar Consumption Reduction Ratio
The Novak family had an annual sugar consumption of 68.4 kg and decided to reduce it by 5:8 the following year. How much sugar can the Novak family consume in the next year? - Line segment
The 4 cm long line segment is enlarged in the ratio of 5/2. How many centimeters will the new line segment be long? - Electric energy
There are 875 identical light bulbs in the sports hall lighting for 2 hours. How long does the same amount of electricity consume 100 such bulbs? - Finding Original Number
If we reduce the number x by 30%, we get 140. What is x? - Football Field Width
The football field has an area of 75.75a. What is the width if its length is 101m? - Temperature Drop Degrees
At the Štrbské prom, the station measured an air temperature of 12.7°C in the afternoon. By morning, the air temperature had dropped to -5.8°C. How many degrees °C has the air temperature dropped? - Paper kite purchase
The children will make paper kites in the club. They have calculated that they will need 12 square meters of paper in the store. They have a 125 cm wide bundle of paper. How many meters of the bundle do they need to buy? - Cyclist meeting Trenčín is 120 km from Bratislava. The average speed of a cyclist traveling from Trenčín towards Bratislava is 20 km/h. Calculate the average speed of the passenger car that left Bratislava compared to the cyclist if the cyclist and the passenger car left
- Pine Seedlings per Area
A forest nursery needs an area of 1.25 square meters per pine seedling. How many pine seedlings are planted in an area of 9 acres? - Borrowing Rate of Berries
At what rate did the sparrow borrow 1,200 grape berries from the thrush when it returned 1,392 berries? - Car Travel Time Minutes
How many minutes will a car voyage 10 km at a speed of 75 km/h? - Drawing Rectangle with Area
The picture shows a square net in which the side of one square is 1 cm long. Draw a rectangle with an area of 18 squares with a circumference of 22 cm. - Road Roller Surface Area
The road roller is 2 m long and 1 m in diameter. How many square meters of road roll when it turns 15 times? - Reading Pages Over Weekend
You need to read 105 pages of the book over the weekend. You know that the time you can spend reading on Saturday and Sunday is 3:4. How many parties do you plan for Saturday, and how many for Sunday? - Irregular Body Volume
The aquarium has a rectangular base of 0.5 m × 0.3 m. By immersing the irregular body, the level enters by 3 cm. Calculate the volume of the body. - Complementary angles 2
Two complementary angles are (x+4) and (2x - 7). Find the value of x. - Percentage conversion
Express a drop of 8 percent per mille. - Saving for Phone Case
Kamil saved up to buy a new phone case, which cost CZK 390. He only put ten and twenty crowns in the cash box. After two months of investigation, he had 25 coins in his treasury. When he calculated the total value of all the coins, he found out that he st
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