Maths practice for 11-year-olds. - page 45 of 224
Number of problems found: 4478
- Expression writing forms
Write the expression n, which is: (a) Six greater than twice the expression y; b) equal to the square root of the sum of the expression y and the number 3; (c) three times less than four times the expression y. - Cube seat fabric
How much fabric will be needed to cover 12 cube-shaped seats with a 40cm 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 compound positive two-digit numbers whose greatest common divisor with the number 51 is the number 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. - 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 265m on the first day. She was a bit tired on the second day and walked 650m. How far did she walk in two days? - I sold
I sold 552 candy bars on Saturday and 487 candy bars on Sunday. Thus, I sold 552 more candies 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. - How many 21
How many tiles of 2m by 2m in size can fill the floor of a room with a size 16m x 12m? - 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 The cube-shaped drawer has an area of 405 dm square. Calculate the volume of this drawer.
- Stamp collection total
In his stamp collection, Radek had half of the Czech stamps, a third of Slovak stamps, and just 128 overseas stamps. Radek did not collect any other stamps. Calculate how many stamps Radek had in the collection. - Number comparison times Calculate how many times six-hundredths is greater than 12 ten-thousandths.
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