Numbers - examples

  1. Z7-I-4 stars 4949
    hviezdicky_mo Write instead of stars digits so the next write of product of the two numbers to be valid: ∗ ∗ ∗ · ∗ ∗ ∗ ∗ ∗ ∗ ∗ 4 9 4 9 ∗ ∗ ∗ ∗ ∗ ∗ 4 ∗ ∗
  2. Divisibility
    divisibility Is the number 214743 divisible by 10?
  3. Chocolate
    cokolada Charlie bought 7 same chocolates for 14 Eur. How many euros he pay for 27 chocolates?
  4. Brick
    brick One brick is 2 kg and half a brick heavy. What is the weight of one brick?
  5. Balls
    balls I have 12 balls and my friend has 18. About how many has my friend more balls?
  6. Compare
    fraction Compare fractions ?. Which fraction of the lower?
  7. Weeks
    calendar 55 weeks is equal to how many days?
  8. Troops
    regiment Route is long 203 km and the first day first regiment went at an average speed 20 km/h and journey back 19 km/h. The second day went second regiment same route at an average speed 18 km/h there and back. Which regiment will take route longer?
  9. Trio
    3Soldiers 84 children lined up in groups of three. How many children did not create a trio?
  10. Textbooks
    textbooks After check of textbooks found that every 8-th textbook should be withdrawn. Together 74 textbooks were withdrawn. How many textbooks were in stock before withdrawn and how many after withdrawn?
  11. Above 100%
    dummy What is 155% of 210?
  12. Logs
    gulatina Trunk diameter is 72 cm. Is it possible to inscribe a square prism with side 54 cm?
  13. Cherries
    visne Cherries in the bowl can be divided equally among 11 or 16 or 4 children. How many is the minimum cherries in the bowl?
  14. School
    trieda 27 students of 6.A class is going to a trip. They pay 7 € each. The teacher got 147 €. How many children have not paid?
  15. Shelf
    bookshelf.JPG How many ways are there to arrange 9 books on a shelf?
  16. Logic
    blue-barrel A man drinks a barrel of water for 31 days, woman for 58 days, for how many days they drink barrel together?
  17. Medicament
    tablets Same type of medicament produces a number of manufacturers in a variety of packages with different content of active substance. Pack 1: includes 60 pills of 1200 mg of active substance per pack cost 18 Eur. Pack 2: includes 30 pills of 1000 mg of active s
  18. Digits
    numbers_2 Write the smallest and largest 3-digit number.
  19. One sixth
    one_sixth How many sixth are two thirds?
  20. Right Δ
    ruler Right triangle has length of one leg 7 cm and length of the hypotenuse 25 cm. Calculate the height of the triangle.

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