Maths practice for 12-year-olds - page 255 of 354

Number of problems found: 7071

Closest natural number
Find the closest natural number to 4.456 to 44.56 and 445.6.
Boys and girls
There are 28 girls in the hall. 5/7 of all children are boys. How many children and how many boys are there?
Groups
In the 6th class, there are 60 girls and 72 boys. We want to divide them into groups so that the number of girls and boys is the same. How many groups can you create? How many girls will be in the group?
Car distance
The car will travel 28 km in one hour. How much will it go in two and a half hours?
Holiday trip
Pavel is saving for the holiday trip. He received 1100 CZK from his father. He saved a fifth and received the rest 500 CZK from his mother. How much did his holiday trip cost?
Warmer weather
This morning it was -6 °C. What temperature did the thermometer show yesterday if it was three times warmer?
Boys and girls
There are 48 children in the sports club. Boys are ten more than girls. How many girls go to the club?
Combine / add term
Combine like terms 4c+c-7c
Container
The container has a cylindrical shape, the base diameter is 0.8 m, and the area of the base is equal to the area of the wall. How many liters of water can we pour into the container?
Excavation
The excavation for the cottage's base measures 4.5 m x 3.24 m x 60 cm. The excavated soil will increase its volume by one-quarter. Calculate the volume of excavated soil.
Missing pupils
There are 32 pupils in the class. How many pupils were missing from school if 12.5% were absent?
Box metal
The box is shaped like a cube with an edge 52 cm long. How many m² of sheet metal is needed to make a box with a lid? Add 5% to the folds of the lid and walls.
Vacation
Tomas spent 60% of his savings on his weekly vacation. He had 32 € left. How many euros did he have before vacation?
Computer course
There are 32 pupils in the class. A quarter of them attend a computer course. What percentage of the total number of students in the class do not attend a computer course?
Calf
The weight of the calf meat obtained is 65% of the total weight of live calves. What was the weight of a calf from which 285 kg of meat was obtained?
Lunch cost
In a specific Czech company, each employee pays 40% of the lunch price, and the remaining CZK 33 is contributed by the employer. What is the cost of lunch?
Departure time
The truck arrived in Brno at 6 pm, 14 minutes and 50 seconds. The journey took 5 hours, 17 minutes 20 seconds. What time did the truck go?
Water flow
120 hl of water flows out of the tank through 4 pipes in 16 hours. How much water flows through 5 identical pipes in 14 hours?
Image reduction
To say that I am mathematically challenged is a gross understatement! I'm trying to help my friend determine how to calculate percentages of reduction or enlargement for a quilt pattern. She is creating a drawing of a cute picture that will become a piece
Wheel revolutions
The diameter of the motorcycle wheel is 60 cm. How many times does the wheel turn on a track 1,884 km long?

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