Maths practice for 12-year-olds - page 215 of 355
Number of problems found: 7083
- Two Numbers Product Ratio
The ratio of two natural numbers is 2:3. The smaller number naturally is 12. What is the product of these numbers? - Fruit Count Apples Pears Oranges
I have 20 pieces of fruit. How many apples when pears are nine times more than oranges? - Divisor comparison calculation
How often is D (24.60) less than n (24.60)? - Concentric Circles Area
The small circle in the picture has an area of 3.5 cm². It touches from the inside and passes through the center of the large circle. What is the area of a large circle? The result round to an integer. - Secret Society Gender Ratio
There are eight boys and twelve girls in the secret society. How many boys must they accept so that the ratio of boys to girls is 3:4 - The number
What number of 1 cm cubes are required to make a 4 cm cube? - Average Grade Goal Worst
Janko has committed that his average grade in mathematics will be exactly 2 at the end of the semester. However, so far, he has received grades 3 and 4. He knows that by the end of the year, he will receive four more grades from the tests. What are the wo - Plates - gold
The father bequeathed to his two sons 4 gold plates in the shape of a square, which were 1 mm thick. The side lengths of these plates were 5 cm, 10 cm, 10 cm, and 15 cm. The sons were to receive the same amount of gold. How many gold plates did each son r - Pool filling time
The garden children's pool has the shape of a cylinder with a base diameter of 3.2 m and a depth of 60 cm. How many hours and minutes will it fill 10 cm below the edge of 0.5 l of water per second flows through the tributary? Round to whole minutes and wr - Number axis distance
Find out which numbers are seven from the number 27 on the number axis. Write their sum. - Pages counting
There are pages numbered 2 to 104 in the book. How many digits have to be printed to number the pages? - Dividing a Circle
Draw a circle k, r = 4cm, and divide it into two parts in a ratio of 1:5. - Jill's
Jill's mom stored some of the honey in a container containing 3/4 of a gallon. She used half of this amount to sweeten tea. How much was honey in the cups used in the tea? Express your answers in cups. - Aquarium
Can 30 liters of water fit in a cuboid aquarium with dimensions a = 3dm b = 6dm c = 5dm? - On Sunday
On Sunday, the temperature reached a high of 38° above 0. That night it dropped to 23° below 0. What is the difference between the high and low temperatures for Sunday? - Ribbon on the cube
A cubical gift box is tied with a piece of ribbon. If the total length of the free ends and the bow is 18 inches, what is the length of the ribbon used? (Each side of the cube is 6 inches). - Isosceles triangle
In an isosceles triangle, the arm's length and the length of the base are in a ratio of 3 to 5. What is the length of the arm? - Workers - earning
Twelve workers would earn € 800 in 10 days. How many euros would 14 workers earn in 8 days? - Which Which decimals, when subtracted, equal 3.89: a - b = 3.89
- Test Grades Distribution Students
No one got a grade worse than three. A third of the class got one, two-fifths two, and eight students had three. How many students had one or two?
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