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Number Patterns or Algebra

Questions (2)

It is a 4-digit numberThe tens are double the ones. The thousands are double the tens. The sum of the digits is 19. What number
1. 3 answers
2. asked by Edward
3. 975 views
Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now
1. 3 answers
2. asked by Paula
3. 519 views