Maths practice for 11-year-olds. - page 131 of 226
Number of problems found: 4508
- Conference 2
Nine people attended a conference on behalf of their company. The conference fee was £520 per person, and the company paid £856 in travel costs for the nine people. How much did the conference cost the company altogether? - Discount on T-shirts
When buying two identical T-shirts, the discount on the second is SKK 60. If Ondra pays CZK 170 for both T-shirts, how much does one T-shirt cost? - The cube
The cube has a 25 cm edge. We cut it into small cubes with 5 cm long sides. How many of these little ones are left when we build a new cube of 20 cm in length? - Number sum change
How much does the sum of three two-digit numbers change when we increase the first by 20, decrease the second by 10, and leave the third unchanged? - Five Odd Numbers Sum
The sum of five consecutive odd numbers is 35. What are these numbers? - Mixing Celsius and Fahrenheit
Add up three temperatures: 5°F +6°F +0°C - Cube root For 13, Sam wrote 2891 instead of the correct cube number. By how much was he wrong?
- Big number How many ones (digits) does the number 12345678910111213141516 ... 4647484950 contain? Did we write all natural numbers from 1 to 50 in a row?
- Pool capacity
The pool is 30 m long, 12 m wide, and 2 m deep. Can it contain 7,000 hl of water? If so, what is the level? If not, how much extra water is there? - Opposite sum difference
The opposite sum of numbers 12 + 13 adds the opposite number of their difference. Which of the following is correct? - The thermometer At 8:00 in the morning, the thermometer showed an outside temperature of 16.7 degrees. It rose by 2.6 degrees in two hours. What temperature did we have at 10:00?
- Expression plus minus Evaluate expression: (-1)2 . 12 – 6 : 3 + (-3) . (-2) + 22 – (-3) . 2
- Cube cutting calculation How many can small cubes with a 1cm long edge cut from a cube with a 3cm long edge?
- Aquarium
Find how many dm² of glass we need to make a block-shaped aquarium (the top is not covered) if the dimensions are to be a width of 50 cm, length of 120 cm, and height of 8.5 dm. - Bus lines
At 5.00 in the morning, four buses left the terminal at the same time. The first bus has an interval of 15 minutes, the second 20 minutes, the third 25 minutes, and the fourth 45 minutes. How many minutes will all four buses leave the terminal at the same - Wood dividing
Which equation calculates the number of 1/3-foot pieces that we can cut from a piece of wood that is 7 feet long? - Pencil cut
Veronica cut a 10cm pencil. Each turn, the pencil was reduced by 0.2mm. She turned the pencil 100 times. How many centimeters has a pencil now? - Five mechanics
Five mechanics can build a car in a certain amount of time. How many cars can 30 mechanics build in the same amount of time? - Orange juice
In the morning, the buffet has three types of juice: 6 orange, 4 apple, and 2 currant. In three hours, half of the currant juice and half of the apple juice were sold. No one had ordered orange juice by then. What fraction of the total initial juice suppl - Cylindrical Container Volume
The cylindrical container should have a volume of 1 liter and a height of 15 cm. What will be its average height?
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