Maths practice for 12-year-olds - page 230 of 347
Number of problems found: 6932
- Fraction of a Number
As I calculate 1/12 of 28 thousand - Bus vs train
Millie took the bus, and the journey took 55 minutes. Julia was 1 h 20 min by train. They arrived in Prague at the same time, 10 h45 min. At what time did each have to go out? - Painter
If one liter of paint covers an area of 5 m2, how much paint is needed to cover: a) rectangular swimming pool With dimensions of 4 m x 3 m x 2.5 m (the Inside walls and the floor only) b) the Inside walls and floor of a cylindrical reservoir wi - Prism height
A four-sided prism has a volume of 648 cubic centimeters. The trapezoid that is its base has the dimensions a is equal to 10 centimeters, c is equal to eight centimeters, and height v is equal to 6 centimeters. Calculate the height of the prism. - Rectangle perimeter
Adam had three identical rectangles. He put them together and got a rectangle with a circumference of 50 cm. Then, he placed them differently and got a rectangle with a larger circumference. Calculate its perimeter. - Triangular prism
Calculate the surface of a regular triangular prism with a bottom edge of 8.5 meters and an appropriate height of 60 meters, and the prism height is 1.4 meters. - Three-quarters pool
How many liters of water are in a cube-shaped pool with dimensions equal to 3 whole six meters b equals one full 9 meters and a depth of one total 5 meters if it is filled to only three-quarters of its volume? - Three friends
Three friends had balls in a ratio of 2:7:4 at the start of the game. Could they have the same number of balls at the end of the game? Write 0 if not, or write the minimum number of balls they had together. - The rod
The rod has the shape of a regular hexagonal prism with a volume of 32.4 cubic decimetres. What is the area of the base if it is 350 centimeters long? Round to ones. - Cost to Cover Prism
Calculate how much we will pay for the paper to cover the box in the shape of a three-sided prism with the base of a right-angled triangle; if the overhangs measure 12 cm and 1.6 decimeters, the hypotenuse measures 200 millimeters, the box is 27 centimete - Room Bed Distribution
There are 169 pupils, 45 rooms, how many rooms are three beds and how many five beds? - Curtain Width Multiple
Father gave Lucy €20 for a new curtain. Due to the pleating, the curtains are wider than the window width of 2 meters. Lucy spent all her money on the curtain, which cost 7.90 Euros per meter. Is the curtain a multiple of the width of the window? - CZ flag
What percentage of the Czech flag comprises blue, white, and red textiles? - The volume
The volume of a solid cylinder is 260 cm³. The cylinder is melted down into a cuboid whose base is a square of 5cm. Calculate the cuboid's height and surface area. - Book reading
If we read the book at a speed of 15 pages a day, we read it three days before we read it at a speed of 10 pages per day. If I read six pages per day, how many days will I read the book? - Customary length
Convert length 65yd 2 ft to ft - Triangular prism
Calculate the volume of a triangular prism 10 cm high, the base of which is an equilateral triangle with dimensions a = 5 cm and height va = 4,3 cm - Barrels
Peter has 42 barrels. One-sixth of them are filled with lemonade, one-third are filled with wine, and half are empty. Calculate how many barrels are with each filling. - Book savings Jana spent CZK 366 on books, which was 75 percent of her savings. How much CZK did Jana have saved?
- Tiles for Square Meter
How many tiles with a side length of 20 cm will cover a square with a capacity of 1 m² [square]?
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