Arithmetic - math word problems

  1. Cube 2
    krychle_1 How many times will increase if the surface area of the cube if we triple length of its edge?
  2. Joshka
    money-false Joshka had € 15. Mama took him 15%. How many had left?
  3. Roses and tulips
    flowers_3 At the florist are 50 tulips and 5 times less roses. How many flowers are in flower shop?
  4. Two diagonals
    rhombus-diagonals The rhombus has a side length 12 cm and length of one diagonal 21 cm. What is the length of the second diagonal?
  5. Square
    ppyth5 Calculate the side of a square with a diagonal measurement 10 cm.
  6. Unknown number 7
    graph-parabola Calculate unknown number whose 12th power when divided by the 9th power get a number 27 times greater than the unknown number. Determine the unknown number.
  7. Rotatable tower
    veza Rotatable tower situated in the city center has ground shape of a regular polygon. If the tower is rotated by 14.4° around its centerpiece it looks from the side same. Your task is to calculate at least how many vertices can have a ground plan view of the.
  8. Trio 2
    decide Decide whether trio of numbers is the side of a right triangle: 26,24,10.
  9. Square roots
    roots What is equal to the product of the square roots of 295936?
  10. 2d shape
    semicircles_rect Calculate the content of a shape in which an arbitrary point is not more than 3 cm from the segment AB. The length of the segment AB is 5 cm.
  11. Trickster 2
    cents Figliarko had in wallet a few cents. One friend returned 4 cents and another friedn 7 cents. Now he has 51 cents in the wallet. How many cents previously had in his wallet?
  12. Quotient 3
    fractal_5 If the quotient of 8/13 and 2 is subtracted from the product of 1 3/4 and 8/21, what is the difference?
  13. Cube
    krychle How many times increases the surface area of a cube with edge 23.4 cm if the length of the edge doubled?
  14. Lcm 2
    lcm Create the smallest possible number that is divisible by numbers 5,8,9,4,3
  15. Number
    numbers_10 Which number is 17 times larger than the number 6?
  16. Troops
    army If the general sorts troops into the crowd by nine left 6. How many soldiers has regiment if we know that they are less than 300?
  17. Microsaving
    boy_1 Honza saved 72 crowns. Pepík saved 9 crowns more than Honza. How many crowns saved Pepík?
  18. Nightingale
    slavik Nightingale sang five seconds for 5 hours and 5 minutes. How many seconds were missing to sing 10 hours?
  19. Cube edge
    cubes_9 Determine the edges of the cube when the surface is equal to 37.5 cm square.
  20. Car parking
    motocycles The car park has 45 motorcycles and 25 cars. 14 cars went away and 2 arrived, then departs 12 motorcycles and 2 arrive. How many motorbikes and cars there are now?

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