Maths practice for 12-year-olds - page 296 of 298
Examples and word math problems for 7th grade.Number of problems found: 5942
- Rectangle A2dim
Calculate the side of the rectangle if you know that its area is 2590 m² and one side is 74 m. - Window
Peter demolish a box hole in the wall for the window frame 147×51 cm. When they come, they will find a master-fitted frame and window that glass is 13.3 cm from the hole in each direction. Calculate how much percent less light enters the window than - VAT
VAT is a tax on which the state artificially betrays goods and services for final consumption. VAT in Slovakia is 20%. Calculate how much percent pay fewer tax residents of Japonska, when VAT is only 5%. - Solidarity
Imagine a word solidarity means that salt donation to the needy, who have neither the salt. If we take the word solidarity has a word base on salt + gift (only in the Slovakian language). Calculate how many kilos of salt a sympathetic citizen "gives" gove
- Density - simple example
Material of density of 1189 kg/m³ occupies a container volume of 64 cm³. What is its mass? - Circle arc
The circle segment has a circumference of 135.26 dm and 2096.58 dm² area. Calculate the radius of the circle and the size of the central angle. - Insurance
The house owner is insured against natural disasters and pays 0.04% annually of the value of the house 76 Eur. Calculate the value of the house. Calculate the probability of disaster if you know that 41% of the insurance is to pay damages. - Slovak broad track
Once upon a time, we learned in school that the Russians have "wider" tracks than ours because they have less tolerable ground. In truth, decide only the area of sleepers, no track gauge. Calculate how many millimeters our track is 1435 mm, different from - Rectangular trapezoid
How many inner right angles have a rectangular trapezoid?
- Present
The gift box has a rectangular shape with dimensions of 8×8×3 cm. Miloslav wants to cover it with square paper with sides of 18 cm. How much paper left him? - Mine
The wheel in the traction tower has a diameter of 4 m. How many meters will perform an elevator cabin if the wheel rotates in the same direction 89 times? - Clocks
How long will a path of the end of the clock's minute-hand long 7 cm for 330 minutes? How long will we walk at the same time hour-hand? - Kites
Boys run kites on a cable of 68 meters long. What is the kite altitude if the angle from the horizontal plane is 72°? - Shape
The plane shape has a maximum area 677 mm². Calculate its perimeter if the perimeter is the smallest possible.
- Maximum area of rhombus
Calculate the interior angles at which the equilateral rhombus has a maximum area. - Lunch for free
Gastro tickets are "free," so it should retain them. Goods for free approve by many employees in Slovakia. Such as a free gastro ticket per day work. The company issuing gastro tickets gets a 4.9% fee of the total amount of money for tickets. Calculate ho - Number ratio
Calculate two positive numbers. Its ratio is 6:6, and difference was 0. - Farmer
The farmer is farming 293 ha of arable land, and the remaining 20% are meadows and pastures. How much land does the farmer own? - Rhombus angles
If one angle in the rhombus is 137.6°, what is its neighboring angle in the rhombus?
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