Maths practice for 9-year-olds - last page
Number of problems found: 376
- Car amortization
Assume that the car has a life 11 years and new cost 19000 euros. Calculate how much a month is amortized cost of the car over its lifetime. Amortization is the gradual reduction of assets (cars, buildings), mainly due to using or aging. - Ton's teeth
Calculate at what age homeless Anton will be toothless. At age 29 has 26 teeth, and each year next tooth breaks. - Weeks
22 weeks is equal to how many days? - Life
Calculate how many years has man lived for 12248 days?
- Efficiency of rail
With subsidies, is business easy? Calculate how much must cost a rail ticket (x) in today's ticket price € 11 and if the government did not subsidize the trains if it is known that it would cost three times today's ticket without subsidies. Calculate the - RBA
Regional Building Authority has an annual budget of EUR 1806814. In the previous calendar year, has processed 804 approval procedures. How much does an average one-building approval cost (e.g., unsuccessful revoke)? - Textbooks
After the check of textbooks found that teachers should withdraw every 9-th textbook. Together 176 textbooks were withdrawn. How many textbooks were in stock before being withdrawn, and how many after withdrawal? - Balls
I have 12 balls, and my friend has 21. About how many have my friend more balls? - Brick weight
The brick weighs 4 kg and a half-brick. How much does one brick weigh?
- Three cats
If three cats eat three mice in three minutes, after which time 90 cats eat 90 mice? - Subtraction
How many times can you subtract the number 4 from the number 64? - Carpenter
You want to cut the longboard into smaller pieces. Carpenter said that one board cut into two pieces would cost you 40 cents. But you need to cut the board into 5 parts. How much do you pay? - Glasses
Imagine a set of students in your class (number of students: 15) who wears glasses. How many minimum and maximum elements may contain this set? - Like
There are 140 liters of water in 14 barrels. How many barrels of 8 liters do I need to get all the water from the larger barrels?
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