Multiplication - examples - page 11

  1. Evaluate
    calculator_3 The division of numbers 24 and 8 increase by product of the numbers 175 and 0.01
  2. Athletes
    spartakiada_2 Athletes standing in rows of eight. Ivan estimated that athletes are more than 120. Peter claimed that there are fewer than 130. Both are right. How many are athletes?
  3. Digits of age
    babka The product of the digits of Andrew age as 6 years ago and not equal to 0. Andrew age is also the smallest possible age with this two conditions. After how many years will be the product of the digits of Andrew age again the same as today?
  4. Wood bars
    wood_bars It is 9 bars 14 meters long and 9 bars 11 meters long. How many 5-meter lath is needed to make them?
  5. Cake fractions
    dort Thomas ate 1/3 of cake, Bohouš of the rest of the cake ate 2/5. What fraction of cake left over for others?
  6. Money borrow
    stur Ms. Kate wants to borrow € 2,000. The company A will borrow ten installments of 240 euros and the first two months does not pay anything. Company B it their position in 12 installments of € 210. Which company has the more favorable interest rate for Ms. K
  7. Heart as pump
    srdce Heart pumps out 5.17 liters of blood in 1 minute. How many liters of blood pumped per hour and how much per day?
  8. Juice box
    zeus In the box is 0.3 liters of juice. How many liters of juice contains 6 these boxes?
  9. Parenthesis
    casino Fill in the examples correctly brackets: A) 7.9+12:3-2 =23 B) 7.9+12:3-2=75
  10. Percentages
    percent2 Expressed as a percentage:
  11. Mr. Vojta
    penize Mr. Vojta put in the bank 35000 Kč.After a year bank him credited with interest rate of 2% of the deposit amount. How then will Mr. Vojta in the bank?
  12. Master and apprentice
    painters_1 Master painted the roof in 3 hours and apprentice for 4 hours. How many of roof they painted in hour and how many in three quarters of an hour?
  13. Salt
    sol 1 t of sea water contains 25 kg of salt. How many tons of seawater must be evaporated to obtain 2 q of salt?
  14. Operations
    mechanical_calculator Sum of the numbers 3.06 and 4.21 multiply by the difference of numbers 4.81 and 3.17.
  15. 3 years
    ekonomicky-rast The company has increased the number of employees. In year 1997 compared to 1996 17% more, in 1998 12% more against the previous year, in year 1999 20% more compared to 1998. How many % increase in the number of employees in 3 years?
  16. Shoes
    obuv Joseph had one pair of sandals, one pair of hiking shoes, 1 pair of botas, one pair of church shoes. How many pieces of shoes had together?
  17. Bookshelve
    money_15 Bookshelve with an original price of € 200 twice become cheaper. After the second discounted by 15% the price was € 149.60. Determine how much % become cheaper for the first time.
  18. Euros
    fractal_1 Michal, Peter, John and Lenka got together 2,400 euros. They share an amount in ratio 2:6:4:3. How many got each of them?
  19. Percent chaining
    meter_1 Calculate 20% from 70% from 80 km
  20. Football league
    football_3 In the football league is 16 teams. How many different sequence of results may occur at the end of the competition?

Do you have interesting mathematical example that you can't solve it? Enter it and we can try to solve it.



To this e-mail address we will reply solution; solved examples are also published here. Please enter e-mail correctly and check whether you don't have a full mailbox.