Problems for 4th grade
- Photo frame
A square shape photo with a side length of 20 cm is framed by a 4 cm wide bar. Find the external frame size of this photo (the frame is from all sides)
There are 27 pupils in the classroom. They can swim 21 and ski nine pupils. Neither swim nor ski three pupils. How many pupils can swim and ski?
- Brick weight
The brick weighs 2 kg and a half bricks. How much does one brick weigh?
- Three cats
If three cats eat three mice in three minutes, after which time 260 cats eat 260 mice?
- Homeless Dezider
Homeless Dežko has 9 coins in jacket: Calculate the value of its assets and calculate how many bottles of wine for 0.55 EUR can he buy.
After check of textbooks found that every 10-th textbook should be withdrawn. Together 58 textbooks were withdrawn. How many textbooks were in stock before withdrawn and how many after withdrawn?
How many times you can subtract the number 4 from the number 64?
Calculate how many hours take holidays, if take 5 weeks.
38 weeks is equal to how many days?
A man bought a pig for € 60 then sold it for € 75. Then again bought for € 90 and sold it for € 100. How many € earned?
I have 19 balls and my friend has 27. About how many has my friend more balls?
Julka has 3 cents more than Hugo. Together they have 27 cents. How many cents has Julka and how many Hugo?
- Ton's teeth
Calculate at what age homeless Anton will toothless. At age 29 has 26 teeth and each year next one tooth broke.
Lentilka made 31 pancakes. 8 don't fill with anything, 14 pancakes filled with strawberry jam, 16 filled with cream cheese. a) How many Lentilka did strawberry-cream cheese pancakes? Maksik ate 4 of strawberry-cream cheese and all pure strawberry pancake
Regional Building Authority has an annual budget of EUR 1806814. In previous calendar year has processed 804 approval procedures. How much does an average of one building approval costs (eg unsuccessful revoke)?
In the hutch are 48 mottled rabbits. Brown are 23 less than mottled and white are 8-times less than mottled. How many rabbits are in the hutch?
Cyclist goes on a trip. First, drove 4 hours average speed 44 kilometers per hour, then slowed down and another 4 hours driving a speed 36 kilometers per hour. How many total kilometers cycling?
- Efficiency of rail
With subsidies are business easy. Calculate how much must cost rail ticket (x) in today's ticket price € 11 and if the trains was not subsidized, if it is known that without subsidies would cost three times today's ticket prices. Calculate the value of.
- Children in the classroom
How many children are in the classroom, where Ladislav is 10th lightest and 16th heaviest in class?
Hanka has 6 apples more than Juro and 7 apples less than Mirka. Mirka has 23 apples. How many apples has Hanka and how many Juro?