Maths practice for 12-year-olds - page 140 of 355
Number of problems found: 7085
- Garden fence mesh
My grandfather made a fence around his rectangular garden measuring 7.2 meters and 12 meters. How many meters of mesh did he have to buy, and how much did he pay if one meter of mesh was € 5.90? - Row for lunch
There are less than 66 people in a row for lunch. In front of Eva, there are 28 students. Behind Martin, there are 30 people. Between Eva and Martin, there are 17 people. How many students would stand behind Eva if Martin stood in front of Eva? - Consecutive odd sum
The sum of three consecutive odd numbers is 183. What is the largest of them? - Simplify:
Simplify: 8(−9 − 5x) + 4b use x = 9 and b = −9 - Consecutive odd numbers
The sum of two consecutive odd numbers is 184. What are these numbers? - 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 - Potato harvest yield
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? - Pipeline length
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? - Trapezoid complete
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. - Cylinder volume rectangle
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. - Glass pendant weight
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. - Diesel tank level
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? - Ratio difference product
Find the product of the ratio and the difference between the numbers 16/3 and 3.2 - Candy fraction sharing
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?
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