Maths practice for 11-year-olds. - page 206 of 224
Number of problems found: 4463
- String
Divide the string length 800 cm in ratio 1: 5 - The exhibition
The teacher charged 280 CZK for four students' admission to the exhibition. How many students were at the exhibition? Hint: the admission cost is a whole number. - Lesson exercising
In the lesson on physical education, pupils are first divided into three groups so that each has the same number. They redistributed, but into six groups. And again, it was the same number of children in each group. Finally, they were divided into nine eq - Rabbit family
The rabbit family ate 32 pieces of carrots. The small one ate six pieces, and the dad five more than the mother. How many pieces did Mom eat? - Wood
Wood density is 0.6 g/cm³. How many kilograms weigh one m³ of wood? - Angles in triangle
Calculate the angle alpha in the triangle if the beta is 61 degrees and 98 gamma degrees. - Circle - easy 2
The circle has a radius of 6 cm. Calculate its diameter, perimeter, and area: - Bicycle wheel
The bicycle wheel diameter is 62 cm. How many times turns the bicycle on the road 1 km long? - Cuboid - simple
Calculate the surface area and volume of a cuboid if a = 8 cm, b = 14 cm, and c = 6 cm. - Grass seeds
How many kg of grass seed is needed to be sowing a circular field with a diameter of 120 meters when one m² should be used in 0.8 grams of seeds? - Pulley
A fixed rope with a load is mounted on wheels with a diameter of 40 cm. Calculate how far the load is lifted when the wheel turns seven times. - Annulus
Calculate the area of two circles annulus k1 (S, 3 cm) and k2 (S, 5 cm). - Sidewalk
The city park is a circular bed of flowers with a diameter of 8 meters. Around it, the whole length is 1-meter wide sidewalk. What is the sidewalk area? - Concrete pillar
How many cubic meters of concrete are needed to construct the pillar shape of a regular tetrahedral prism when a = 60 cm and the height of the pillar is 2 meters? - Milimeters
The pool is 6 meters long and 3 meters wide, and the water in it is filled with water to a height of 1.7 m. When John jumped into it and completely submerged, the level had risen by 5.4 mm. How much weight does John have when we know that one liter of the - Borrowed book
Jane must, as soon as possible, return a borrowed book. She figured that reading 15 pages a day return the book in time. Then she read 18 pages a day and then returned the book one day before. How many pages should a book have? - Three Titanics
Three steamers sailed from the same port on the same day. The first came back on the third, the fourth 4th day, and the third returned on the sixth. How many days after leaving, the steamers meet again in the harbor? - Concrete box
The concrete box with walls thick 6 cm has the following external dimensions: length 1.6 m, width 39 cm, and height 32 cm. How many liters of soil can fit if I fill it to the brim? - Cube 3
How many times will increase the volume of a cube if we double the length of its edge? - Cube 2 How many times will increase if the surface area of the cube if we triple the length of its edge?
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