Maths practice for 10 year olds - page 51 of 63
Number of problems found: 1251
- Simultaneously 3157
The first machine closes 65 closing bottles per minute. The second machine closes five bottles less at the same time. How many minutes will both machines close 2,500 bottles if they work simultaneously? - Expression 3143
Determine the value of the expression 3x / 2 - 5/2 - 0,5x + 1 for x: a) x = 3 b) x = -3 c) x = 0 - Variables: 3140
Determine the value of the expression 3a + 2b - a² - 4b² for the values of the variables: a) a = - 1, b = 3 b) a = 2, b = -1 c) a = -2, b = -3 d) a = 4, b = 2 e) a = -5, b = 0 - Granite cube
What is the weight of a kilogram granite cube with an edge of 0.5 m if 1dm³ of granite weight 2600 g? - Pohádkov 3118
The brothers live in a small house with a garden in Pohádkov. The house has four times more windows than doors. There are a total of 20 windows and doors in the house. How many windows and how many doors? - Napkins
Viera and Darina exchanged napkins. Always three yellow for four red napkins. How many yellow napkins will Viera receive for 24 red napkins? - The book
The book has 280 pages. Each side is a rectangle with sides of 15 cm and 22 cm. a) how many leaves have the book? b) at least how many square meters of paper should be used to produce this book? - Block-shaped 3062
A block-shaped aquarium with 35 cm and 26 cm bottom dimensions is poured with 18.2 liters of water. How high is the water? - Block-shaped 3059
Calculate the volume of a block-shaped water tank with dimensions of 6.5 m, 4.8 m, 2.8 m - Calculate 3052
Calculate the volume and area of the cube with the length of the edge a) 5m b) 32 mm c) 4.5 dm - Circumference 3045
Calculate the circumference of the square if the length of its side a = 78cm - Identical 3011
Daddy nailed 54 poles to 3 equal parts of the fence. How many poles did he need for a fence with ten identical parts and a goal for which he used another ten poles? - Cubic meters
How many liters of water are 123 cubic meters? - Calculate 2974
Calculate and find the rule according to which the numbers follow: 600 300 900 1200 2100 3300. Write a few more numbers. - Competitors 2970
During the five-day car race, the route measured 879 km on the first and 650 km on the second. The competitors covered a total of 4,655 km. How many km did they cover in the next three days? - Tablecloth
The table top is 90 cm long and 50 cm wide. How many cm of lace edging is necessary for the tablecloth that hangs on each side by 10 cm? - Measuring 2942
Mr. Svoboda has 25m of carpet tape at home. He wants to hem the carpet measuring two times 2m and three times 4m. Does he have enough tape? - Additional 2941
If the amount for the last text messages in one month with the mobile operator MOBY exceeds 14 euros (it costs 100 cents), each additional text message costs 13 cents. a) From what time does the price of a text message become 13 cents? b) How much does it - Foot in bus
It was 102 people on the bus. Twenty-eight girls had two dogs. Eleven girls had one dog. Five dogs (even with their owners) seceded at the next stop. They got two boys together with three dogs. The bus drove one driver. How many feet were on the bus? - Mathematical 2928
Write any numeric expression whose value is 100 and will contain at least four different mathematical operations.
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