Maths practice for 11-year-olds. - page 115 of 226

Number of problems found: 4508

Equation - words
Determine the unknown number for which it applies: whose four times increased by the number 3 equals its double.
Classmate seating arrangements
Classmates Annie, Bea, Ella, and Dana can sit next to each other on the bus. What and how many ways can they sit down?
Surface of the cube
Find the surface of the cube that has volume 1/1m³ 2/0.001 m³ 3/8000 mm³
Cube surface calculation
What is the cube's surface if the side is 5.2 cm?
Circular track
The competitor runs on a circular track with a radius of 86 m. How many meters will he run in five rounds? (Solution and detailed procedure)
Motorcyclist distance calculation
The motorcyclist travels at a speed of 48 km/h. Will he drive at this speed in 400 minutes? Km
Ant tree height
The ant looks at a 45-degree angle at the top of the tree, 15 m away from the tree. How tall is the tree?
Square area calculation
Calculate the area of a square in dm², which has a side length of 5.8 cm.
The circumference
The circumference of the rectangle is 62 cm. A square whose side is as long as one side of a rectangle has a circumference of 56 cm. What is the area of each shape?
Milk2cheese
From 40 liters of milk, 8 kg of cheese is produced. How many liters of milk are needed to produce 2 kg of cheese?
Block width calculation
The volume of the block is 72 liters, the height is 6dm, and the length is 4dm. What is the width of the block?
Ferry capacity calculation
The ferry transporting people across the river has a transport area of 17mx25 m. How many people can carry a maximum of 50 people per 1 person?
Kerosene in the bottle
The volume of kerosene in the bottle is 10 cm³. Find the weight of the fluid. (its density is ρ = 830 kg/m³)
The number 3
Ski organizers should print the start numbers from 1 to 45. How many times will they use the number 3 when printing?
Number multiplication puzzle
John thought of a number. He multiplied it by four and added 18 to the result, getting ten times the number 8. What number did John think of?
A library
A library has 12,500 fiction books and 19,000 nonfiction books. Currently, 2/5 of the fiction books are checked out, and 2/5 of the nonfiction books are checked out. Of the books checked out, only 1/10 are due back this week. How many books are due this w
Reservoir height calculation
The block-shaped reservoir has 147 hl of water and is 3.5 m long and 2.8 m wide. Calculate its height.
Room people capacity
The room is 240 cm high and has a volume of 48 m³. How many people can work in it when there is 7 m² of floor space per person?
Plot fence cost
A diamond-shaped plot of land has a side of 0.032 km and a height of 17 m. One meter of wire mesh costs € 5.40. How much mesh is needed to fence the area?
Body density floating
A body weighing 2 kg with a 7.8 g / cm³ density is placed in water. Does the body sink? Will he swim (1 = Yes, 0 = No)?

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