Maths practice for 11-year-olds. - page 17 of 227
Number of problems found: 4539
- Fuel and oil ratio 2T
Add 4 liters of gasoline with oil in a ratio of 33:1. How much oil is needed? - Evaluate expression
Evaluate the expression written in words: -1 and two/7 + parenthesis -2 and one/4 end of parenthesis + 1/two = - Average 110
The average of five numbers is 1.3 their sum is? The arithmetic mean of the numbers 0.04; 0.014; 0.21 is? The arithmetic mean of four decimal numbers is 2.5. Three of these numbers are 1.8; 0.65; 3.1 the fourth number is? - Buses 7
Two lines leave the bus stop according to the schedule A) 8:00 every 6 minutes until 23:00h B) 8:00 every 14 minutes until 23:00h How many times will buses of both lines leave the bus stop simultaneously between 8:01 and 20:00? - Unknown fraction
2/6 + fraction = 1 - Cinema visitors
There are 35 seats in each row of an open-air cinema. Determine the maximum number of visitors that can fit in the viewing area, if we know that there are more than 705 and less than 740. - Concert organizers
800 people came to the concert, a quarter more than the organizers expected. How many people did the organizers expect?
- Children - dividing
What is the least amount of nuts we need to have to divide them among 10, 12, and 18 children? - Quarter 84177
We used one-quarter of the coal we bought, leaving us with 12 q. How much coal did we buy? - Animals - pasture
There are a total of 195 animals on the pasture - sheep, goats, calves. There are half as many sheep as goats and twice as many calves. How many sheep are there on the pasture? - Cutting a cuboid
A cuboid can be cut into 200 cubes, each with a volume of 8 dm cubic. Calculate how many cubes with a volume of 1 cm cubic can this cuboid be cut into without a remainder. - Arithmetic 84171 The arithmetic mean of two numbers is 10. One of the numbers is 2. What is the second number?
- TEV physical education
The students lined up in threes in a physical education class, then in fours, and there was always one extra student. What is the least number of students that could be in the gym? - At the post office
Maria paid three checks at the post office with a hundred-euro banknote. One for €19.95, the second for €50, and the third for €24.65. Each check was charged €1.40. How many euros did she receive? - Create 2
Create a suitable table and fill in the data: The production of four machines takes a total of 80 hours. Each machine is produced for the same amount of time. How long does it take to produce 1 machine, 2 machines, 5 machines?
- From tank 2
First 1/3 was drained from the water tank, then 1/4. There were 20 liters of water left in the tank. How many liters of water were in the tank at the beginning? - Quarters 84104 How many sixths do we need to add to two-thirds to get four quarters?
- Factorization and primes
Write how many twos are in the prime factorization of the number 2024. - Six horses
How many bags of feed are needed for 6 days for six horses, if 21 bags of feed are needed for 3 days for seven horses? - Brick 5
A brick weighs 7/2 kg, a tile 11/8 kg. The first truck was carrying 900 bricks, the second truck was carrying 2000 tiles. Which car was carrying a heavier load and by how many kg.
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