Maths practice for 10 year olds - page 55 of 57
Number of problems found: 1130
- Textbooks
After checking the textbooks, it was 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 Together, 176 textbooks were withdrawn. How many textbooks were in stock before being withdrawn, and how many after withdrawal?
- Theater
Each row of the theater has 15 seats. The ticket to the first 7 rows is for 26 EUR. The next row is for 13 EUR. The theater was completely sold out. Revenue was 5850 EUR. How many rows are in the theater?
- Wage
Increasing the minimum wage while maintaining the other parameters of the system, unemployment will be: ...
- Coins
Edmund had saved a certain number of 2-euro coins. He placed the coins in a single layer in a square. He had 6 coins left. When he wanted to build a square with one more row, he was missing 35 coins. How many euros does he have?
- Aircraft
If an airplane flies 846 km/h for 8 h, how far does it travel?
- Cherries
Cherries in the bowl can be divided equally among 20 or 15, or 10 children. How many are the minimum cherries in the bowl?
- Clock
What time is now if the time elapsed afternoon is 2/10 of time that elapses before midnight?
- Brick weight
The brick weighs 4 kg and a half-brick. How much does one brick weigh?
- Warehouses
To four warehouses is going cement in 25 kg bags, from first one third to the second quarter of the total. The third store got two-thirds of the rest, and the last 120 tons came to fourth. How much cement is in all warehouses, and how much got everyone?
- Three cats
If three cats eat three mice in three minutes, after which time 70 cats eat 70 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?
- Two squares
Two squares with sides in the ratio 3:7 have a sum of their perimeters 58 cm. Calculate the sum of the area of these two squares.
- Camp
In a class are 36 children. During the holidays, 20 children were in the camps, and 18 children were on holiday with their parents. Find the minimum and the maximum number of children that may have been in the camp and on holiday with their parents at the
- What is missing (1000)
What number is to add to get 1000?
- Decimal expansion
Calculate: 8 . 10 + 7 . 1 + 4 . 100 + 3 . 10000 + 6 . 1000 + 7 . 100000 =
- Summand
One of the summands is 145. The second is 10 more. Determine the sum of the summands.
- 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?
- Windows
Calculate the masonry area to build a wall with dimensions of 18 m × 5 m with 3 windows of size 51 cm × 51 cm.
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