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

Number of problems found: 241

  • Lcm = 22 + gcd
    prime The least common multiple of two numbers is 22 more than their greatest common divisor. Find these numbers.
  • Martina
    eq1 Martina is solving the equation 4x - 11 = 2x + 391. Here are the first steps of her solution. 4x - 11 = 2x + 391 2x - 11 = 391 2x = 402 What did Martina do to get 2x - 11 = 391?
  • Marshall
    penize Marshall earns a salary of 36,000 in each year and he receives a $4000 raise Jim and the salary of 51,000 each year and he receives a 1500 rays how many years will it take before Marshall and Jim are in the same salary
  • Phone number
    pin_keyboard Ivan's phone number ends with a four-digit number: When we subtract the first from the fourth digit of this four-digit number, we get the same number as when we subtract the second from the third digit. If we write the four-digit number from the back and
  • How many 17
    numbers How many fifths are there in four wholes? How many 1/5 are there in 4?
  • Athletics team
    olympics All athletes in the athletics team from Ostrava can start in four, five, six and seven stages, and no one will be present. How many average athletes are in one athletic group if there are a total of twelve groups in the section? Consider the smallest numb
  • Three integers
    plusminus Three consecutive integers add up to 51. what are these integers?
  • A class IV.C
    skola In a class 2/5 were boys. 30 were girls. How many more girls than boys are there?
  • Six times
    eq2_fx 6 times a number has 2 subtracted from it. The result it thrilled . the answer is the same if you add 6 to twice the number and multiply the result by 2
  • English and math
    skola 1/5 of a class study English, and 3/5 study mathematics. If the class consist of 80 students, how many students study English and mathematics in the class?
  • Sixteen
    plusminus Sixteen minus the quotient of 12 and what number is thirteen?
  • The largest divisor
    plusminus The largest number which divides 60 and 75 leaving remainders 8 and 10 respectively is:
  • What are 3
    numbers2 What are the two digits which when inserted in the blank spaces will make 234 _ _ divisible by 8?
  • Four multiples
    numbers2 Four multiples of 6 he writes the following 12  24  56  72, which is correct?
  • A number 5
    numbers A number is divisible by 24, 25, and 120 if it is increased by 20. Find the number.
  • The cost 2
    apples The cost of 5 apples is $3.45  and 5 oranges is $1.23. If Rachel buys one apple and one orange, then how much must she pay?
  • The building
    city There are 45 people living in building, out of these 3/5 are men,2/5 are women . find the number of men and women in the building.
  • Players - baseball
    balls2 There are 20 players on each of two baseball teams. If 2/5 of the players on team 1 miss practice and 1/4 of the players on team two miss practice, how many more players from team 1 missed practice then team 2?
  • What fraction
    prime What fraction of number 1 to 30 is prime?
  • Ember
    ratios Ember spent $144 on her birthday party for 18 guests. If the cost is at the same rate, how many guests will there if she spends $176?

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