1. Children in the classroom
How many children are in the classroom, where Ladislav is 10th lightest and 16th heaviest in class?
2. Father and son
Father and son are together 80 years. Son is 28 years younger than father. How old is the son?
3. Carpet
The room has rectangle shape with dimensions 4 m × 3.8 m. How many meters of carpet a width of 3 need to buy to cover the entire room?
4. Like
When is in 14 barrels 140 liters of water, how many liters barrels of 8 liters I need to get all the water from the larger barrels?
5. Valid number
Round the 453874528 on 2 significant numbers.
6. Primes 2
Which prime numbers is number 2025 divisible?
7. Theatre
Theatrical performance started at 15:50 and ended at 18:50. How many minutes long?
8. Class
When Pythagoras asked how many students attend the school, said: "Half of the students studying mathematics, 1/4 music, seventh silent and there are three girls at school." How many students had Pythagoras at school?
9. Fractions
Sort fractions ? by its size. Result write as three serial numbers 1,2,3.
10. Hexagon
Draw a regular hexagon inscribed in a circle with radius r=8 cm. What is its perimeter?
11. Pizza master
Master says that he can splits pizza to 16 parts by five equals straight cuts. Is it possible?
12. Working time - shortening
The media often speculates about the change (especially to shorten) the working time of the five-day eight-hour working week to another working model. Calculate how many hours a day the employee would have to work a day at 3-day work week if he must work t
13. Denominator
Calculate the missing denominator x: ?
14. Pedestrian and cyclist
Pedestrian out with a speed of 4 km/hour from city center and after 1hour and 10 minutes came after him cyclist at speed of 18 km/h. At how many minutes he catches up with pedestrian?
15. Carpenter
You want to cut long board into smaller pieces. Carpenter said that one cut of the board into two pieces will cost you 100 cents. But you need to cut the board into 9 parts. How much you pay?
16. School
27 students of 6.D class is going to a trip. They pay 9 € each. The teacher got 153 €. How many children have not paid?
17. Exhibition
The teacher paid for 280 Kč for 4.A students for admission to the exhibition. How many students were on the exhibition?
18. Garden plot
Calculate how many meters of fence need to fence the square garden with length and width of 22 meters.
19. Hours
How many hours is 9 days?
20. Bus driver
The bus driver rides 174 km in the morning, afternoon rides 26 km more. How many kilometers traveled in 5 days if he rides on the same line?

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