Examples for 5th grade (the fifth graders)

  1. House numbering
    byty_1 The residential house has three entrances numbered even numbers, successive immediately behind. The sum of the two numbers on the outside entrances is 68. Calculate the middle of these three numbers.
  2. Dinosaurs
    dino More than 30 and less than 60 dinosaurs have met at the pond. A quarter of them bathed and 1/7 saws and the rest gripped. How many were at the pond? How many were there?
  3. A rectangular
    garden_19 A rectangular garden 40 m long and 30 m wide is to be fenced with fence posts at each corner. All the other posts will be 5 meters a part. How many posts will be needed to fence in the garden.
  4. Hr to min
    time_8 Sue biked to school in 5/12 of an hour. How many minutes did it take her to ride to school?
  5. Brick
    brick One brick is 6 kg and half a brick heavy. What is the weight of one brick?
  6. Chocolate
    cokolada Ivan bought 7 same chocolates for 28 Eur. How many euros he pay for 21 chocolates?
  7. Three cats
    three_cats If three cats eat three mice in three minutes, after which time 140 cats eat 140 mice?
  8. Divisibility
    divisibility Is the number 146025 divisible by 6?
  9. Cyclist
    cyclist_2 A cyclist passes 88 km in 4 hours. How many kilometers he pass in 8 hours?
  10. Monkey
    monkey Monkey fell in 33 m deep well. Every day her scramble 3 meters, at night dropped back by 2 m. On that day it gets hangover from the well?
  11. Diophantus
    diofantos_1 We know little about this Greek mathematician from Alexandria, except that he lived around 3rd century A.D. Thanks to an admirer of his, who described his life by means of an algebraic riddle, we know at least something about his life. Diophantus's youth l
  12. 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 600 mg of active substance per pack cost 9 Eur. Pack 2: includes 150 pills of 500 mg of active sub
  13. Chickens
    chickens 2 chickens give 2 eggs in 2 days. How many eggs can give 8 chickens for 8 days?
  14. 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.
  15. Tereza
    cube The cube has area of base 64 mm2. Calculate the edge length, volume and area of its surface.
  16. Textbooks
    textbooks After check of textbooks found that every 10-th textbook should be withdrawn. Together 58 textbooks were withdrawn. How many textbooks were in stock before withdrawn and how many after withdrawn?
  17. Youth track
    tunel Youth track from Hronská Dúbrava to Banská Štiavnica which announced cancellation attracted considerable media attention and public opposition, has cost 6.3 euro per capita and revenue 13 cents per capita. Calculate size of subsidies to trip group of 10.
  18. It is rectangular?
    nice_3d Size of two of the angles in a triangle are: α=110°, β=40°. Is it a right triangle?
  19. Subtraction
    cards1 How many times you can subtract the number 1 from the number 16?
  20. School trip
    school_trip School trip cost 184.8 USD for one class (28 students). How much would cost a trip for two classes? (both classes together have 56 students)

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