Identity

123456789 = 100
Use only three plus or minus characters to correct previous identity/equation.

Result

x =  100

Solution:

x=123−45−67+89=100x=123-45-67+89=100

Try another example


Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!





Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




You need to know the following knowledge to solve this word math problem:

Next similar math problems:

  1. Three numbers
    dice How much we increases the sum of three numbers when the first enlarge by 14, second by 15 and third by 16? Choose any three two-digit numbers and prove results.
  2. Bus 2
    bus2 On the 6-th stop 44 passengers take off from bus. Overall, the 6-th stop 13 passengers were added. How many passengers take on 6-th stop?
  3. Roman numerals +
    rome-italy Add up the number writtens in Roman numerals. Write the results as a decimal number.
  4. Collection
    calendar Majka gave from her collection of calendars Hanke 15 calendars, Julke 6 calendars and Petke 10 calendars. Still remains 77 calendars. How many calendars had Majka in her collection at the beginning?
  5. Mystery number
    numbers2_38 A mystery number is between 800 and 920. No digits are the same. The difference of the numbers 5. What is the mystery number?
  6. Car parking
    motocycles The car park has 45 motorcycles and 25 cars. 14 cars went away and 2 arrived, then departs 12 motorcycles and 2 arrive. How many motorbikes and cars there are now?
  7. Mom and dad
    love Mom wants talk with dad 2.2 hours. But dad wants of 2 times more hours than mom ... How many hours wants dad talk with mom? ...
  8. Skiing
    sneh Ski gondola starts at a distance of 975 m from the top and is 389 meters long. I went to the bottom station to the top station. How many meters I must go to the top of hill?
  9. Baking
    buchty_3 There are 28 bunches, and son ate 1/2, dad ate four bunches. How many of them remain on the baking dishes?
  10. Roman numerals
    roman_1 Write numbers written in Roman numerals as decimal.
  11. What is missing (1000)
    red_minus What number is to add to get 1000?
  12. Roman numerals 2+
    rome-italy_1 Add up the number writtens in Roman numerals. Write the results as a roman numbers.
  13. Bus
    bus_4 On the 4-th stop take on 56 and take off 38 passengers. How many were added (write as positive number) or shrunk (write as negative number) the count of passengers?
  14. Tulips and daffodils
    kvety Farm cultivated tulips and 211 units on 50 units more daffodils. How many spring flowers grown together?
  15. Euro
    1euro I have 1 euro. How much will I have when you spend it on?
  16. Summand
    plus One of the summands is 145. The second is 10 more. Determine the sum of the summands.
  17. Book
    books_6 Jitka read on holidays book that has 180 pages. In the first week read 45 pages. In the second week she read 15 pages more than the first week. How many pages left to read it yet?