Maths practice for 11-year-olds. - page 169 of 224
Number of problems found: 4479
- Three elephants
Three elephants eat three piles of hay in 150 minutes. For how long do 96 elephants eat 96 stacks of hay? - Time adding
Add and write the result again as hours, minutes, and seconds: 2hours45min15s + 1hr20m50s = - Rings - intersect
There are 15 pupils in the sporting ring. Ten pupils go to football, and eight pupils go to floorball. How many pupils go to both rings at the same time? - Study
For 7 hours of study, she scored a 75, so if she made 93, how many hours would she need to study? - Surface area
Calculate the surface area of a four-sided 2-m high prism whose base is a rectangle with sides of 17 cm and 1.3 dm. - Photo egative
Negative dimensions are 36mm and 28mm. What will the photo size be in the 21:4 ratio? - Ball throwing
The children threw the ball into the distance. The 1st child threw 27 meters. The 2nd part threw 180 decimetres. The third child threw 290 decimetres. Which child threw the farthest? - Water reservoir
The water tank has a cuboid with edges a = 1 m, b = 2 m, and c = 1 m. If we fill fifteen 12-liter cans, how many centimeters of water will fall? - Painting
To paint the pool with dimensions: 2 meters depth, 3m x 4m we bought paint to 50 meters square. How much "paint" will be wasted? - Photo enlarge
Mark wants to enlarge a 4-inch by 6-inch photo to 15 inches in height. Use a ratio table to determine the new width of the photo. - Oak cuboid
Oak timber is rectangular shaped with 2m, 30 cm, and 15 cm dimensions. Its weight is 70 kg. Calculate the weight of 1 dm³ of timber. - Fraction of a time
Express a fraction of what a 24-hour portion is, 80 minutes. - Apricot crates
296 trees are growing in the apricot orchard. The planter estimates the harvest from each tree at about 70 kg. He has prepared a total of 500 crates, each of which can hold 15 kg. He wants to store the rest of the apricots in 20 kg crates. How many such c - Euros
Peter spent a quarter of his pocket savings. He has 9 euros now in his wallet. How many euros were spent? - Rectangle
The length of one side of the rectangle is three times the length of the second side. What are the dimensions of the rectangle if its circumference is 96 cm? - Equation solving
a) 5 + 4x = 5x-22 b) 8y-49 = y-4 - Chronicle cipher
From the beginning of the year, students in 4th grade wrote a chronicle. She had everything they had together, and they cared a lot about her. But one day, the chronicle was lost. Five students were left to search for everything on Monday after the class. - Equation
Solve equation with unknown x: 3 (1/3 + 2x) -2 (1/3-3x) -13/2 = 0 - Factory workers
The textile factory employs 600 women and men, twice as many women as men. How many women and how many men work here? Demonstrate and explain the calculation procedure. - Tomato sticks
The gardener has ten sticks 160 cm long and five sticks 220 cm long. If each stick is 7 cm long, how many tomato sticks can it make?
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