Maths practice for 11-year-olds. - page 223 of 225

Number of problems found: 4498

Garden
How many steps of 64 cm circumvent the square garden with area 1.5 ha?
Angles 1
Is it true that adjacent angles have common arm?
Bricks
Brick has volume 2.4 dm³. How many bricks can drive a truck with a capacity of 15 ton? The density of brick is 2 g/cm³.
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?
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 30 minutes.
Guess number
With what number should be divided, number 10387 to be reduced by 30%?
Angles
The triangle is one outer angle 82°6' and one internal angle 48°36'. 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?
Train
The train passes part of the line for 55 minutes at a speed of 70 km/h. What speed would you have to go to shorten the driving time of 16 minutes?
Right triangle
Right triangle legs have lengths 71 dm and 919 mm. 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 24, gives 16 and the rest 7.

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