Rounding - 4th grade - math problems

  1. Garden
    zahon_4 Rectangular garden 31 meters 40 centimeters long and 20m30cm wide adjacent with the shorter side with another (fenced) garden and on one longest side is 1 meter wide gate. How many meters of fence is needed to buy? (Estimate, calculate, verify a test c
  2. Clotheslines
    snura Mommy needs 6 clothesline 360 cm long. Clotheslines is sold in the length of eight meters. How many of these clotheslines must buy mom if any does not want to be connected? How much mommy pay for the clotheslines when 1 piece costs 24kč?
  3. Sum and rounding
    numbers_14 I know two numbers whose sum is 20. When they each round and then added together I get the 30. What are this numbers?
  4. Rounding
    map1 What width and length in centimeters may have rectangle land when round the dimensions to the meter , the width is 5 m and length 7 meters?
  5. Life
    dedko Calculate how many years has man lived for 12248 days?
  6. Like
    barrels When is in 14 barrels 140 liters of water, how many liters barrels of 8 liters I need to get all the water from the larger barrels?
  7. Homeless Dezider
    kos Homeless Dežko has 9 coins in jacket: Calculate the value of its assets and calculate how many bottles of wine for 0.55 EUR can he buy.

We apologize, but in this category are not a lot of examples.
Do you have an interesting mathematical word problem that you can't solve it? Submit 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...