Maths practice for 11-year-olds. - page 173 of 224
Number of problems found: 4479
- Combined savings
Pavel has half as much savings as Standa but the same savings as Radek. Standa saved CZK 120 less than Radek. What savings do all three boys have together? A) less than CZK 600 B) CZK 600 C) CZK 960 D) 1200 CZK E) another number of crowns - Curtain rods
The shop has curtain rods in 140cm, 180cm, and 200cm lengths. Aunt needs to cover the curtain width of 3m 20cm. What cornices will her uncle buy her? How many cm will have to be cut from each? - Diameter to area
Find the area of the circle whose diameter is 26 cm. - Cinema seats
There are 15 seats in the cinema. If we know the number of seats, we will say that there are more than 390 but less than 410. - Calculate - sphere
Calculate the surface and volume of the sphere if its radius r = 5 cm. - Fence from concrete There is a 1.5 m wide trail around the lake. Dad spent 2,550 cubic decimeters of concrete in its construction. If one cubic meter costs 52 €, how much is paid for concrete?
- Dimensions of the frame
The picture frame is made of a 6 cm wide bar. The dimensions of the image are 74 and 57 cm. Are the inner and outer edges of the frame two similar baffles? - Aquarium area
The aquarium with bottom dimensions of 75 cm and 45 cm has a volume of 135 l. What is the area of areas that are wetted with water if the surface reaches halfway around the aquarium? - Melon sales
Alfonz grew 150 melons with an average weight of 2.35 kg. He sold them for € 1.50 per kg. How much did he earn? The result is rounded to the euro. - Wood lumber
Wooden lumber is 4 m long and has a cross-section square with a side of 15 cm. Calculate: a) the volume of lumber b) the weight of the lumber if 1 m³ weighs 790 kg - 2d shape
Calculate the area of a shape in which an arbitrary point is not more than 3 cm from the segment AB. The length of segment AB is 5 cm. - Age puzzle
The father is 48 years old, and the son is 21. How many years ago was the father ten times older than the son? - A five-digit
A five-digit odd number has the sum of all digits (digits) five and contains two zeros. If we move each digit in the number one place to the left and move the first digit to the last place, we get a number 20,988 smaller. Find this unknown five-digit numb - Cylinders needed
How to calculate how many cylinders up to 1m³ are needed? Dimensions 9.5 cm x 30 cm. - Hamster cage
Ryan keeps his hamster cage on his dresser. The area of the top of Ryan's dresser is 1 2/3 as large as the area of the bottom of his hamster cage. The area of the dresser top is 960 square inches. How many square inches of his dresser top are not covered - Divide
Divide the substance 110 cm long into two parts so that the first part is 10 cm longer than the second part, and one part will be ten times longer than the second portion. How long will the parts be? - Perimeter from area
What is the perimeter of the square if its area is 64 cm²? - Bicycle wheel
After driving 157 m, the bicycle wheel rotates 100 times. What is the radius of the wheel in cm? - Equation solving
If we add 9 to its four times, we get 33. Make a notation and solve the equation - Distance calculation
How far is it from Prague to Mladá Boleslav when 40 km is eight-tenths of this distance?
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