Maths practice for 12-year-olds - page 136 of 350
Number of problems found: 6985
- Mr. Gardener
Mr. Gardener wants to make wood for the balcony. Boxes. Each will have the shape of a perpendicular prism with a square base. The height is limited to 60 cm. He will fill each container with soil by pouring the whole bag of substrate sold into a package c - One-sixth 46943
Peter planted 220 kilograms of potatoes, and he produced twelve times more. One-sixth of the proceeds were earmarked for next year. How many tons of potatoes to eat were harvested? - Seconds flying
The hot air balloon flew for 8 hours, 8 minutes, and 8 seconds. How many seconds did it take to fly 10 hours? - Employees 46923
The new water supply pipeline is to be 1.2 km long. Employees put it from both ends. On one side, 0.492 km of pipeline is laid, and on the other side, 53,500 cm of a pipeline. How many meters of pipe are left to lay? - Two dice
What is the probability that when the roll of two identical dice is the sum of points 7? - The diameter
The cone's diameter is 24 cm, and the radius is 12 cm. How many cm does height measure if it is one-third larger than the radius of the cone? - Circumference 46801
Calculate side b and the height of the trapezoid if a = 5.1cm; c = 6.8cm; d = 4.7cm; circumference is 21cm, and the area is 17.85 cm². - Rectangle 46791
We rolled up the shell of a 4 cm high rotating cylinder from a rectangle measuring 6 cm and 4 cm. Find the volume of the cylinder. - Calculate 46741
Calculate the weight of the pendant - a regular four-side prism made of glass. The density of the glass is 2.5 g / cm3, the edge of the base is 2 cm, and the height of the pendant is 5.5 cm. - Contained 46731
The diesel tank is shaped like a block measuring 4.5 m x 3.2 m. If it contained 216 hl of diesel, what was its level? - Minute hand
What is the distance the clock's minute hand travels in 12 minutes if the clock's diameter is 30 cm and the hand extends to a distance of 2 cm from the edge of the clock? - Perimeter of rhombus
The area of the rhombus is 32 cm². One side measures 10 cm. The height on the other side measures 5 cm. What is the circumference of this rhombus? - Difference 46651
Find the product of the ratio and the difference between the numbers 16/3 and 3.2 - Candies 46631
Dana had 48 candies and offered them to her friends. Anna took a third, Bety a sixth, and Charlotte an eighth of all sweets. How many candies did she take? - A fraction
I think of a fraction. If we increase its numerator and denominator by one, the value of the fraction increases by one-tenth. What fraction do I think? - Birthday party
Jay brought two pizzas for his birthday party. At the birthday party, they eye 1 4/7 pizzas. What's the fraction of pizzas they have left? - Calculate 46541
Calculate the perimeter and the area of a right triangle if a = 6 cm, b = 8 cm, c = 10 cm. - Juraj: 46521
Karel said to Juraj: If you had 50 Euros less than twice the money I had with me, you would have 10 Euros more than I did. How many Euros did Karel have? - Flooring 46511
The carpet covers 8 m² of flooring, which is one-third of the entire floor area. How big is the whole floor? - Plasticine 46461
How many grams of plasticine do we need to model a cube with an edge of 150 mm if 1 cm³ weighs 2.1 g?
Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
