Examples for 7th grade (seventh)
Number of examples found: 1974
- Circle r,D
Calculate the diameter and radius of the circle if it has length 26.59 cm.
Make decomposition using prime numbers of number 155. Result write as prime factors (all, even multiple)
Which beer is better to drink: small beer (0.3 L) for 0.67 € or large (0.5 L) for 1.81 €?
- Divide 5
Divide 288 in the following ratio 3 : 4 : 5
How many pounds make 1 kilograms?
- Rhombus 29
One of the diagonals of a rhombus is equal to a side of the rhombus. Find the angles of the rhombus.
- Trapezium 2
Trapezium has an area of 24 square cms. How many different trapeziums can be formed ?
6 m long reservoir has a diameter of 2.2 m. What is its surface area in square meters?
- Common divisors
Find all common divisors of numbers 30 and 45.
- Counting number
What is the smallest counting number divisible by 2,5,7,8 and 15?
How many minutes does it take to fill the tank to 25 cubic meters of water filled 150hl per hour?
The agricultural cooperative harvested 525 ares of rape, of which received 5.6 tons of rape seeds. Calculate the yield per hectare of rape.
Potatoes contain 78.6% starch. How many potatoes need to obtain 27 kg of starch?
- Unknown number
I think the number. I'll reduce it to its one-third. The result is then increased by one-third, and I get the number 12.
- Distance of numbers
Which number has the same distance from the numbers -5.65 and 7.25 on the numerical axis?
Fencing square playground cost € 464; 1 meter cost € 19. What is the area of the playground?
- Geometric plan
At what scale the building plan if one side of the building is 45m long and 12mm long on a plan?
- Circle simple
Circumference of a circle is 6.28. What is the area of the circle?
How long track travel the second hand in 46 hours, the end of which is 4 cm long.
Determine the radius of the circle, if its perimeter and area is the same number.