Maths practice for 12-year-olds - page 314 of 347
Number of problems found: 6932
- Athlete
How long length an athlete run when the track is a circular shape radius of 120 meters, and an athlete runs five times in the circuit? - Pytagoriade
Two fifth-grader teams compete in math competitions - Mathematical Olympiad and Pytagoriade. Out of 33 students in class 5 A, 22 students competed in at least one of the competitions. Students who competed only in the Pytagoriade were twice as many who ju - Circle - simple
The circumference of a circle is 683 mm. How long in mm is its diameter? - Travel by bus
Five girls are traveling by bus. Each holds in each hand two baskets. Each basket contains five cats. Each cat has five kittens. Three girls get off the bus, and another girl without baskets goes on board. The bus control driver. How many legs are on the - Tons of coal
The coal hopper has a capacity of 285 liters. How many tons is it? The bulk density of coal is 911 kg/m³. - Chord 4
I need to calculate the circumference of a circle, and I know the chord length c=16 cm and the distance from the center d=15 cm chord to the circle. - Five girls
Five girls are traveling by bus. Each holds in each hand two baskets. In each basket are four cats. Each cat has three kittens. Two girls exit the bus. How many legs are on the bus? - Grandson and granddad
Grandson with Grandpa counted how many years they had together. Their product is 365. How many years is the sum of their years? - Water lake
The length of the lake water is 8 meters, width 7 meters, and depth 120 centimeters. How many liters of water can fit into the water lake? - Masons
One bricklayer lays 30.8 m² of masonry in 8 hours. How long will it take four bricklayers to lay 178 m²? - Direct ratios
Examples of direct ratios from the given report topics: Number of workers Number of products Time per product Number of working hours Amount of earnings - Rectangle and circle
The rectangle ABCD has side lengths a = 40 mm and b = 30 mm and is circumscribed by a circle k. Calculate approximately how many centimeters a circle is long. - The star
Find the area of the shaded part of a square with a side of 22 cm. - Clocks
What distance will describe the tip of a minute hand 6 cm long for 20 minutes when we know the starting position with finally enclosed hands at each other at 120°? - Annulus
Two concentric circles form an annulus with a width of 10 cm. The radius of the smaller circle is 20 cm. Calculate the area of the annulus. - Arc
What area is occupied by flowers planted in a circular sector with a radius of 3 m and a central angle of 45°? - Two circles
Two circles with a radius of 4 cm and 3 cm have a center distance of 0.5 cm. How many common points have these circles? - 22/7 circle
Calculate approximately the area of a circle with a radius 12 cm. When calculating π, use 22/7. - Janitor
The janitor tosses 28 cm layer of snow on the school grounds for 90 minutes. How many friends would have to call for help if snow needs to have bowled for 15 minutes? We assume that at the same time, we all have the same amount of snow. - Troops - soldiers
Food stocks will last 20 soldiers during the four-day training. If four soldiers become sick, how many days could they extend training?
Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
