Maths practice for 12-year-olds - page 194 of 347
Number of problems found: 6923
- Two dogs
Izzy's dog is 10 1/2 years old. Paige's dog is 18 months old. How many years older is Izzy's dog? - Room wallpaper calculation
Sophie decided to wallpaper one side of her room. How much wallpaper does she need if the wall measures 3 m by 2.4 m? - Equilateral triangle circle
There is a circle with a radius of 2.5 cm and point A, which lies on it. Write an equilateral triangle ABC in the circle. - Weigh in total
I put 3/5 kg of grapes into a box, which is 1/4kg in weight. How many kilograms do the grapes and the box weigh in total? - Cross five
The figure in the picture is composed of the same squares and has an area of 45 cm². What is its perimeter? - Pizza
Three siblings ordered one pizza. Misha ate a quarter of the whole pizza. Helen ate a third of the rest, and Patrick ate half of what Helen had left. They had the rest packed up. How much of the pizza did they pack? Write the result as a fraction. - Square triangle area
Square has the side a = 12 cm. Calculate the area of a triangle in the square. - Vlado step calculation
Vlad walks at a speed of 4 km/h. Its step is 0.8 m long. How many steps will he take in 12 minutes? - Harvester field calculation
Five combine harvesters shit in 12 days. How long does a 2-fold larger field of combine harvesters take? - Snow White 2019 MO Z7
Snow White with her seven dwarfs gathered pinecones for a bonfire. Snow White said that the number of all pinecones is a number divisible by two. The first dwarf stated that it is a number divisible by three, the second dwarf said that it is a number divi - Two trains
Two trains departed from City A and City B against each other. They met after some time. The first train took 9 hours to reach city B, and the second took 4 hours to reach city A. In what proportion were the train speeds? - A plasticine
Joseph modeled from plasticine. He used 27g of plasticine to model a 3 cm long cube. How many grams of plasticine will it need to mold cubes with an edge of 6cm? - Length of the edge
Find the length of the edge of a cube with a cm² surface and a volume in cm³ expressed by the same number. - Walking Earth explanation
What allows a person to walk the Earth: a) atmosphere b) Earth response c) feet d) rolling friction - Rocket speed development
The rocket develops a higher speed, which is: a) higher velocity of escaping gases b) higher mass of escaping gases c) greater momentum of escaping gases d) shorter rocket length - Plot
The land is in the shape of a square with a dimension of 22 meters. How much will we pay for the fence around the entire plot? - Equal temperature
We measured the temperatures of the two cities simultaneously. The temperature in town A was 60 degrees and rose at a constant rate of 2 degrees per hour. The temperature in city B was 40° and rose at a constant rate of 10° per hour. Find the time in hour - Flower bouquet calculation
Three-fifths of the flowers are red, and eight flowers are yellow - how many bouquets of red and yellow flowers do they have? - Land fencing cost
The land is in the shape of a square with a side of 65.4 meters. Moreover, 1 meter of mesh costs 2.30 euros. How many euros do we pay for fencing land? - Square area calculation The town square has the shape of a square measuring 510 meters. What is the size of this square?
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