Reason + addition - math problems

Number of problems found: 75

  • Miraculous tree
    Miraculous tree grows so fast that the first day increases its height by half the total height of the second day by the third, the third day by a quarter, etc. How many times will increase its height after 6 days?
  • Classroom 3
    How many children are in the classroom, where 13 children are higher than Lenka and 9 children lower than Lenka?
  • Pencils
    Emil has 23 pencils in a pencil case, 18 of which were broken. Emily 9 trims, 2 breaks, 4 trims and goes to school. When he returned from school, he has broken 5 pencils. How many pencils have trimmed at school?
  • Grower
    Grower harvested 190 kg of apples. Pears harvested 10 times less. a) How many kg pears harvested? b) How many apples and pears harvested? c) How many kg harvested pears less than apples?
  • Buffet
    In the school buffet were 30 children. Twenty-one children bought sandwiches, and 15 children bought lemonade. Four children did not buy anything. How many children bought lemonade and sandwiches?
  • Letters
    The school children have written 20 letters afternoon and then threw 20 letters, and then the teacher counted the children, and the children were 22, so they went to throw for 2 sheets. How many letters sent together?
  • The largest number
    Find the largest integer such that: 1. No figures is not repeat, 2. multiplication of every two digits is odd, 3. addition all digits is odd.
  • Workman - shift
    The worker produces 300 components per shift. How many components would be produced in 18 shift, if his performance gradually increased every shift by 3 components?
  • Password
    The voltage station is day changing the master password, which consists of three letters. The code generation process does not change and is based on the following procedure: The following letters (A) to (I) correspond to different numbers from 1 to 9 if
  • ZOO
    In the zoo was elephants as many as ostrichs. Monkeys was 4 times more than elephants. Monkeys were as many as flamingos. Wolves were 5 times less as flamingos. How many of these animals were together? We know that there were four wolves.
  • Root
    The root of the equation (x-19)2 -10 = x2 -11x is (equal or greater or less than zero)? ...
  • Homework
    The monthly fee for the phone is 12 USD and for phone unit 0.08 USD. How much family pay phone in the first quarter Q1, if on January 1 had on the counter 97362 units and on April 1 97946 units.
  • Store
    One meter of the textile was discounted by 2 USD. Now 9 m of textile cost as before 8 m. Calculate the old and new price of 1 m of the textile.
  • 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
  • Family
    A man and a woman have 3 daughters together (or - "with each other" so that step-children are excluded). Each daughter has one brother. How many members are in the immediate family?

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Reason - math problems. Addition Problems.