Maths practice for 11-year-olds. - page 43 of 222
Number of problems found: 4427
- Difference 68664
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). - Two-digit 68654 List all compound positive two-digit numbers whose greatest common divisor with the number 51 is the number 17.
- Divisible 68644 List all divisible numbers by six and seven that are greater than 79 and less than 91.
- One-ninth 68524
How many times is twice one-third larger than one-ninth? - Difference 68514
How many times is the difference between the squares of numbers 4 and 2 bigger than the square of their difference (in this order)? - Thirteen 68474 I think the number. From its thirteen times, I'll subtract 97 and get the number 46. What number do I think?
- One-sixth 68464 Write one-sixth product of the numbers 4.8 and 0.4 as a fraction in the basic form.
- Ten-hundredths 68444
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. - Centimeters 68084
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. - Cube-shaped 67884 The cube-shaped drawer has an area of 405 dm square. Calculate the volume of this drawer.
- Collection 67874
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. - Ten-thousandths 67844 Calculate how many times six-hundredths is greater than 12 ten-thousandths.
- Steamers 67804
Two steamers set out on a voyage from the same port. The first steamer returns to port every fourth day, and the second steamer returns every fifth. How many days do they meet again? - Calculate 67794
Calculate the volume of the cuboid in the given unit if you know the lengths of its edges. A) a = 20 cm, b = 3 cm, c = 7 cm, (length) B) a = 10 mm, b = 8 mm, c = 9 mm, (ml) C) a = 30 cm, b = 5 cm, c = 8 cm, (l) D) a = 300 mm, b = 4 m, c = 7 dm, (hl) - Dimensions - tiles
Earthenware tiles have 20 cm, 20 cm, and 2 cm dimensions. The package, which has ten pieces of tiles, weighs 20 kg. Determine the density of the stoneware from which the tiles are made.
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