Rational numbers + multiplication - math problems

Number of problems found: 49

  • Compare
    fraction Compare fractions ?. Which fraction of the lower?
  • Evaluate
    calculator_3 The division of numbers 18 and 6 increase by product of the numbers 156 and 0.001
  • About what
    flower_function How much and how many times is 72.1 greater than 0.00721?
  • Ratio - proportion
    ratios2 Reduce the number 16 in proportion 3:2 5:4 11:8
  • Division
    division Divide by the number 0.2 is the same as multiply by what number?
  • Dinesh
    cookies Dinesh ate 3 cookies, each with mass 1.45 g. What was the total mass of the cookies that he ate?
  • Discount
    sales_discount Product has been discounted twice by 19%. What is the total discount given?
  • Aircraft
    787 If an airplane flies 776 km/h for 7.4 h, how far does it travel?
  • Angie
    milk Angie poured 4 cartons of milk, each with 2.4 litres, into a mixing bowl. How many litres of milk were there altogether?
  • Double 5
    numbers2_49 Peter was thinking of a number. Peter doubles it and gets an answer of 8.6. What was the original number?
  • Milk
    milk_1 Mum bought 16 cartons of milk. One carton of milk weight 0.925 kg. How many weight all purchase?
  • Farmer
    krava The farmer farming 293 ha of arable land and the remaining 20% are meadows and pastures. How much land farmer owns?
  • Time
    time Write time in minutes rounded to one decimal place: 5 h 28 m 26 s.
  • Server
    p_pro Calculate how many average minutes a year is a webserver is unavailable, the availability is 99.99%.
  • Without 2
    calc_4 Without multipying, tell whether the product 0.644 x 0.25 will be greater than 1 or less than 1? Explane how you know. Then find the product.
  • Barrel
    vino Barrel of wine is filled by 9/14. What part of the barrel will remain filled when 1/4 of the wine we pour from the barrel?
  • School trip
    school_trip School trip cost 247.2 Eur for one class (24 students). How much would cost a trip for two classes? (both classes together have 53 students)
  • Fruits 2
    melon An apple costs 7p and a melon costs seven times more. How much will 6 apples and 2 melons cost
  • Bonus
    moeny The gross wage was 1323 USD including 25% bonus. How many USD were bonuses?
  • Rainfall
    storm Annual rainfall in our country is an average of 797 mm. How many m3 of water rains on average per hectare?

Do you have an interesting mathematical word problem that you can't solve it? Submit a math problem, and we can try to solve it.

We will send a solution to your e-mail address. Solved examples are also published here. Please enter the e-mail correctly and check whether you don't have a full mailbox.

Please do not submit problems from current active competitions such as Mathematical Olympiad, correspondence seminars etc...