Maths practice for 12-year-olds - page 241 of 347
Number of problems found: 6923
- 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 - Alcohol in Bloodstream
If a person has 6 kg of blood, how much alcohol does he have in his blood if they measured 3 per mille? - Trains on Equator
The Equator. ..40075 km train. ..300 m. How many trains would fit on the Equator? - Perimeter triangle
In the triangle ABC, there is a side c = 5 cm and medians ta = 6 cm (median to side a), tb = 4.5 cm (median to side b). Find the perimeter of the triangle ABT (T = center of gravity). - Pool Water Height
A 1-meter-wide sidewalk will be paved around the block-shaped pool in the garden. The dimensions of the bottom of the pool are 8.5 meters and 6 meters. The height of the pool walls is 2 meters. There are 86.7 m³ of water in the pool. How high did the wate - Tank filling
The tank is filled in 1 hour and 12 minutes with a pump with a capacity of 25 l/s. How long does filling the tank with a 20 l / s pump take? - Sound Distance Time Table
Sound travels in the air at a speed of 330 m/s. Build a table of the dependence of the distance the sound travels in a given time (for 1 to 10, one second at a time). Write the equation of the relevant dependence. - Sharing Money by Ratio
Hansel, Karel, and Martin shared the money from the brigade in a ratio of 2:4:3. Karel received the most, namely 12.60 euros. How much did Hansel and Martin get together? - Package Weight Total Kilograms
The courier brought four packages to the company that weighed 3.5 kg, 2 1/5 kg, 3/4 kg, and 250 g. How much did all the packages weigh together? Give the result in kilograms and write it as a decimal number. - In the Gargen
Workers will pave a 1-meter-wide sidewalk in the garden with tiles around the block-shaped pool. The dimensions of the bottom of the pool are 8.5 meters and 6 meters. The height of the pool walls is 2 meters. How many m² of pavement will be laid with tile - Bitoo and Reena
Bitoo ate 3/5 part of the apple, and the remaining part was eaten by his sister Reena. How many parts of an apple did Renna eat? Who had the larger share? By how much? - Tallest and shortest
Jenn is the tallest on the team. He is 1 1/2 times as tall as the shortest girl, who is 4 1/4 feet tall. How tall is Jebb? - Beet Yield Per Hectare
A private farmer assumed a beet yield per hectare of x tons. He harvested an average of y tons more per hectare. How many tons of beets are harvested from 0.25 km²?
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