Natural numbers - 7th grade (12y) - math problems

Number of problems found: 252

  • Diophantus
    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 through an algebraic riddle, we know at least something about his life. Diophantus's youth las
  • Camel
    Camel's owner wants to get out of the city into an oasis. He bought 3000 bananas, which wants to sell in the oasis. However, an oasis from the city divided 1,000 kilometers of desert. Camel can carry up to 1000 bananas, and for every kilometer traveled, e
  • Elections
    The elections attended a total 4818 voters. First day 39 men more than women, the second day 21 women more than men. How many women attended elections?
  • Four pupils
    Four pupils divided $ 1485 so that the second received 50% less than the first, the third 1/2 less than a fourth, and fourth $ 154 less than the first. How much money had each of them?
  • Camp
    In the camp are children. 1/2 went on a trip, 1/4 went to bathe, and 38 children remained in the room. How many children are in the camp?
  • Numbers
    Determine the number of all positive integers less than 4183444 if each is divisible by 29, 7, 17. What is its sum?
  • Chocolate
    How many times do we have to break a chocolate bar composed of 10 × 12 pieces to get the 120 parts?
  • Homework
    In the crate are 18 plums, 27 apricot and 36 nuts. How many pieces of fruit left in the crate when Peter took 8 ninth: 1. nuts 2. apricots 3. fruit 4. drupe
  • Divisibility
    Determine all divisors of number 84.
  • Rectangles
    How many rectangles with area 8713 cm2 whose sides are natural numbers are?
  • Seedcake
    Seedcake costs 44 cents. How many minimum seedcakes we must buy that we can pay in cash only whole euros?
  • Monkey
    The monkey fell in 40 meters deep well. Every day it climbs 3 meters, at night it dropped back by 2 m. On what day it gets out from the well?

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Natural numbers - math word problems. Examples for 7th grade (seventh).