Maths practice for 11-year-olds. - page 166 of 224

Number of problems found: 4479

Ten pupils
Ten pupils went to the store. Six pupils bought lollipops, and nine pupils bought chewing gum. How many pupils have bought both lollipops and chewing gums (if everyone bought something)?
Wine
A bottle of wine costs 21 euros, and wine is 20 times more expensive than a bottle. How much does a bottle cost?
Rhombus sides
Find the sides of a rhombus; its area is 550 cm square, and its altitude is 20 cm.
Natural numbers
How many natural numbers can we create less than 301 from the number 0,1,2,3,6,7?
Fence elements
Mr. Winter is building a fence from perforated brick elements in the shape of a cuboid with dimensions of 15 cm, 15 cm, and 20 cm. the fence will be 15 cm wide, 150 cm high, and 10 m long. The mortar space will occupy 0.25 m³. How many brick elements does
Gloves
Petra has ten pairs of gloves in the closet. Six pairs are blue, and four pairs are yellow. At least when she pulls them out in the dark and wants to have one complete one-color pair, how many pieces of gloves need to be pulled out?
A map
A map of size 60cm by 25cm is reduced in the ratio of 3:5 twice. What are the new dimensions?
Bean bag
A student tossed a bean bag. It landed 216 inches away. How many yards are equal to 216 inches?
Seedling planting
The gardener had 458 seedlings. He planted them in three rows of the same number of seedlings. How many seedlings were on each board? Is he left with any seedlings?
Seedling rows
The gardener had 158 seedlings. He planted them in three rows of the same number of seedlings. How many seedlings were on each board? Is he left with any seedlings?
Cuboid
Cuboid has a surface of 516 cm². Side a = 6 cm and b = 12 cm. How long is the side c =?
Surface of cuboid
Find the surface of the cuboid if its volume is 52.8 cm³ and the length of its two edges is 2 cm and 6 cm.
Garden
The garden is rectangular, measuring 19m 20cm and 21m 60cm. Mr. Novák will fence it. It wants the distance between adjacent pillars to be at least two meters and a maximum of three meters. He would also like the distances between the adjacent pillars to b
Bike wheel
The bike wheel has a radius of 30cm. How often does it turn if we go on a 471m bike?
Inter city bus
The inter-city bus leaves Suva at 10.00 am and reaches Nadi at 1.00 pm, covering a distance of 219km. How long did it take to reach Nadi?
Italian writer
There were 17 children in the barracks with an Italian writer. Six children ordered a book in an Italian original, and 12 children in the translation. How many children ordered a book in both languages if the three children did not order it?
Volume of cube
Solve the volume of a cube with a width of 26cm.
Team composition
Ninety boys and 48 girls signed up for the sports competition. How many members of boys' and girls' teams can we assemble so that they have the largest number of members and the same number of members in the boys' and girls' teams?
Brick pillar
The brick pillar with a cross-section of 41x77 cm has a height of 3.25 m. Calculate: (a) the volume of the pillar b) the required number of bricks (if we need 400 pieces per 1 cubic meter)
Seedling spacing
We will plant 24 lettuce seedlings on the 8.4 m long flowerbed. How far apart will we bet them? (Ignore the margins at the beginning and end of the flowerbed.)

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