Maths practice for 11-year-olds. - page 197 of 199
Number of problems found: 3966
- Rainfall
Annual rainfall in our country is an average of 619 mm. How many m³ of water rains on average per hectare?
- Special cube
Calculate the cube's edge if its surface and volume are numerically equal numbers.
- Cube
The sum of lengths of cube edges is 56 cm. What are its surface and volume?
- Education for free
Slovakia circulates a lot of myths, particularly ideas about what must be free. For example - education should be free - children of poor parents should know at least to read and write. Calculate how much a student would have to pay per hour of teaching w
- Date game
Let now is Tuesday. What day is after 229 days? Write the result as a number: 1=Monday, 2=Tuesday, 3=Wednesday, 4=Thursday, 5=Friday, 6=Saturday, 7=Sunday.
- Isosceles triangle
Calculate the perimeter of the isosceles triangle with arm length 87 cm and base length of 95 cm.
- Minute angle
Find the size of the angle, which takes a minute hand for 20 minutes.
- 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 the area of a circle if its circumference is 51.2 cm?
- Fan
The fan has a speed of 155 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
- Aquarium II
Calculate how much glass we need to build an aquarium with a rectangular shape with a base of 65 cm × 52 cm and a height of 74 cm if the waste is 2%. The aquarium doesn't have top glass.
- Thrift woman
Calculate how long grandmother will save on new shoes priced 116 euros if she saves 2 Eur monthly.
- Number
Calculate the integer number divided by 34, gives 10 and the rest 25.
- Solid in water
The solid weighs in air 16.1 kg and in water 13 kg. Calculate the density of the solid.
- Promile
Calculate the 17.6 ‰ of 353.
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