Arithmetic - examples

  1. Traffic collision
    crash When investigating a traffic accident, it was found that the driver stopped the vehicle immediately after the accident by constant braking on a 150 m track in 15 seconds. Do you approve that the driver exceeded the permitted speed (50 km/h) in the village.
  2. Euros
    eura_8 Peter spent a quarter of his pocket saving. He has 9 euros now in his wallet . How many euros spent?
  3. Ounce
    energy_1 749 calories in a 7 - ounce serving . What is the unit rate?
  4. Kangaroo
    klokan_1 Kangaroo do 10 jumps in 1 minute and then three minutes lie , then will make 10 jumps in 1 minute and 3 minutes lie, and so on. Find the shortest time in which kangaroo do 30 jumps.
  5. Trapezoid 15
    trapezoid3 Area of trapezoid is 266. What value is x if bases b1 is 2x-3, b2 is 2x+1 and height h is x+4
  6. Cubes
    krychlicky Carol with cut bar 12 cm x 12 cm x 135 cm to the cubes. Find the sum of all the surfaces of the resulting cubes.
  7. Concrete pedestal
    krychle_10 The carpenters made wooden mold on a concrete pedestal in the shape of a cube with edge 2 meter long. What is the area in which the concrete touches wooden molds? (No lid or bottom)
  8. MO Z6-6-1
    kruhy_1 Write integers greater than 1 to the blanks in the following figure, so that each darker box was product of the numbers in the neighboring lighter boxes. What number is in the middle box?
  9. 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 ca
  10. Divisibility
    divisibility Is the number 109433 divisible by 7?
  11. Chocolate
    cokolada Charlie bought 7 same chocolates for 14 Eur. How many euros he pay for 27 chocolates?
  12. One half
    one_half One half of ? is: ?
  13. Family
    bigfamily The parents had 2 daughters. Each of them had one brother. How many members family had?
  14. Brick
    brick One brick is 2 kg and half a brick heavy. What is the weight of one brick?
  15. Orchard
    orchard 5 trees in 3 lines grows in the orchard. How many trees are in the orchard?
  16. Balls
    balls I have 12 balls and my friend has 18. About how many has my friend more balls?
  17. Cyclist
    cyclist_2 A cyclist passes 88 km in 4 hours. How many kilometers he pass in 8 hours?
  18. Compare
    fraction Compare fractions ?. Which fraction of the lower?
  19. Is right?
    rtriangle Is triangle with sides 24, 51 and 45 right triangle?
  20. Compare
    compare Compare with characters >, <, =: 63.79 ? 63.79

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