The Boy Who Loved Math: Criss Cross

Answer clues based on definitions of the vocabulary words from The Boy Who Loved Math: The Improbable Life of Paul Erdos. Look for hints in the Word Bank. Print the puzzle or use on your tablet, phone, or computer.

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Across

  • 3. a very short time; 1/60 of a minute
  • 5. numbers that are less than 0
  • 7. numbers that you can’t divide into two equal whole numbers
  • 10. a number (like 2, 3, or 5) that can only be exactly divided by itself and by 1

Down

  • 1. to break something into parts; to find out how many times one number contains another number
  • 2. something that happens the same way many times
  • 4. to take something away from something else
  • 6. numbers that can be divided by two into equal whole numbers
  • 8. clothes or other things that are dirty and need to be washed
  • 9. small living things that can make you get sick

Word Bank

divide
even numbers
germs
laundry
negative numbers
odd numbers
pattern
prime number
seconds
subtract