Maths practice for 11-year-olds. - page 189 of 191
Number of problems found: 3802
- Guess number
With what number should be divided, number 9727 to be reduced by 70%? - Angles
The triangle is one outer angle 158°54' and one internal angle 148°. Calculate the other interior angles of a triangle. - Tourist
Tourists walk at 4.1 km/h. Every 5 km has a 20-minute break. How many kilometers were walked when they started at 4:40 and finished at 10:30? - Right triangle
Right triangle legs have lengths 630 mm and 411 dm. Calculate the area of this triangle.
- Circle
How big is an area of a circle if its circumference is 51.2 cm? - Fan
The fan has a speed of 179 RPM. Calculate for the time of one fan period. - DIY press
Under the socialist regime, in some socialist countries, owning a typewriter required special permission. That has hindered the spread of DIY literature (manually transcribed through carbon copy paper for typewriters). Calculate how many typewriters today - Thrift woman
Calculate how long grandmother will save on new shoes priced 108 euros if she saves 3 Eur monthly. - Number
Calculate the integer number divided by 34, gives 10 and the rest 25.
- Air mass
What is the weight of the air in a classroom with dimensions 10 m × 10 m × 2.7 m? The air density is 1.293 kg/m³. - Solid in water
The solid weighs in air 16.1 kg and in water 13 kg. Calculate the density of the solid. - Father and son
Father and son are 74 years old together. Son is 30 years younger than father. How old is the son? - Trio
56 children lined up in groups of three. How many children did not create a trio? - Addition of Roman numbers
Added together and written as decimal numbers: LXVII + MLXIV
- Quiz
The tested student answered correctly on a 4/ 8 question. The wrong answer was 16. How many questions were answered? - Trapezium zoom
How many times increase the area of the trapezoid if all sides and altitude increase 5 times? - Sumo competition
In the competition for the heaviest man was 5 competitors. The first three together weighed 369 kg. What is the minimal weight of the winner if a contestant weighed with an accuracy of one kilogram? - Rectangles
Calculate how many squares/rectangles of size 4×3 cm we can cut from a sheet of paper of 36 cm×32 cm. - Rectangle A2dim
Calculate the side of the rectangle if you know that its area is 2590 m² and one side is 74 m.
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