Maths practice for 11-year-olds. - page 46 of 227
Number of problems found: 4525
- Cube seat fabric
How much fabric will be needed to cover 12 cube-shaped seats with a 40 cm edge? - Cube edge creation From how many cubes with a 4 cm edge can a cube with a 16 cm edge be created?
- Digit number difference
The digits 1, 2, 4, and 8 form two four-digit numbers so that all 4 digits are used in the notation of each number. Calculate the difference between such largest even number and smallest odd number (in that order). - Number divisor list List all composite positive two-digit numbers whose greatest common divisor with 51 is 17.
- Number divisible list List all divisible numbers by six and seven that are greater than 79 and less than 91.
- Fraction comparison times
How many times is twice one-third larger than one-ninth? - Difference of squares
How many times is the difference between the squares of numbers 4 and 2 bigger than the square of their difference (in this order)? - Number subtraction puzzle I think the number. From its thirteen times, I'll subtract 97 and get the number 46. What number do I think?
- Number product fraction Write one-sixth product of the numbers 4.8 and 0.4 as a fraction in the basic form.
- Number comparison times
Calculate how many times ten-hundredths are less than five-tenths. - Nina used
Nina used 2 liters of paint to paint a wall. The wall was a rectangle 2 meters high and 4 meters wide. How many liters of paint would she need to paint a rectangular wall which is 2.5 meters high and 8 meters wide? - A rhombus 3
A rhombus has a side length of 6 centimeters and a height of 2 centimeters. What is the area of the rhombus in centimeters square? - Lindo
Lindo walked 1 265 m on the first day. She was a bit tired on the second day and walked 650 m. How far did she walk in two days? - I sold
I sold 552 candy bars on Saturday and 487 candy bars on Sunday. How many more candy bars did I sell on Saturday than on Sunday? - Container volume surface
The cube-shaped container has a surface area of 320 square centimeters without a lid. Calculate its volume. - Aquarium water level
How high is the water level in the aquarium, which has the dimensions of a base of 80 cm and 45 cm, if there are 72 liters of water in it? - How many 21
How many tiles of 2 m by 2 m in size can fill the floor of a room with a size 16 m x 12 m? - A piece 5
A piece of cloth is laid at the center of a table 80 cm long and 60 cm wide, and it leaves 5 cm all around. Find the area which is not covered by the piece of cloth. - Drawer volume surface A cube-shaped container has a surface area of 405 dm². Calculate its volume.
- Stamp collection total
In his stamp collection, Randy had half of the Czech stamps, a third of Slovak stamps, and just 128 overseas stamps. Randy did not collect any other stamps. Calculate how many stamps Randy had in the collection.
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