Maths practice for 11-year-olds. - page 149 of 222

Number of problems found: 4426

Two-digit 6212
I think of a number, add it to itself, subtract 6, then divide by 2, add 7 and multiply by 8. The largest two-digit number that contains only even digits came out. How much is the result greater than the imaginary number?
Distance 6211
On a map with a scale of 1:25 000, the distance between cities is 11 cm. What is the actual distance between cities?
Konecara 6203
The trip to the top of Konecara and back lasted 5 hours and 17 minutes. We rested at the peaks for 32 minutes. The way back took 51 minutes less than the way there. How long did the trip to the top take?
Equation: 6200
Solve the equation: 2y = 4 (0.5 + 3/2) -1
Calculate 6193
On a project with a scale of 1:250, the length of the pool is 2.00mm, and the width is 1.00mm. The depth of the pool is 1.5 m. Calculate how many hectoliters of water will fit in the pool.
Three-quarters 6192
The swimming pool in the Veselý yard is square-shaped with dimensions of 2.5m by 3.4m and is 1.7 meters deep. How many liters are in the pool if it is filled to three-quarters of its total volume? Please round the result to tenths.
Dimensions 6190
The juice box with a volume of 1 l has two dimensions, 6 cm and 165 mm. Calculate the third dimension of the box.
Calculate 6185
Calculate the rectangle area measuring 0.9 m and 6 dm in cm square.
Density 6184
What is the weight of the glass door panel if it is 5 mm thick, 2.1 m high, and 6.5 d wide? The density of glass is 2.5 kg/dm³.
Rectangular prism
What is the volume if I have a rectangular prism with a length of 1,000 cm, a width of 30 cm, and a height of 50 cm?
Headmaster 6171
Jakub walked down the corridor in 24 steps, 45 cm long. How many steps will a janitor cross this corridor if his step is 72cm long? How long is the headmaster if he walks 18 corridors?
Thunderstorm
The sound travels 1 km in about 3 seconds. How far is the storm if there is a time interval of 8 seconds between lightning and thunder?
Hectoliters 6166
In 1 minute, the human heart pumps an average of 5 liters of blood. How many hectoliters will be pumped a) in 1 day and b) in 1 year?
Distance 6164
What is the area of a square when the distance between parallel lines is 6?
Report 2
A School reports students to teacher ratio of 6:1. If there are 45 teachers in the school, how many students are there?
Surface area 6156
The area (surface of the shell) of the cube is 93 cm². What is the volume of the cube?
Simple sequence
Continue with this series of numbers: 1792,448, 112, _, _
Dinosaurs
More than 30 and less than 60 dinosaurs have met at the pond. A quarter of them bathed, and 1/7 saws and the rest gripped. How many were at the pond? How many were there?
Pedestrian 6146
A pedestrian met Street Math and asked him what time it was. "Add half the time to midnight to a quarter of the time, and you'll get the exact time." What time was it?
Calculate 6144
Calculate in dm² the surface of a quad whose edges have 1.2 dm, 1.4 dm, and 2dm.

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