Positive Integers - Key Vocabulary

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Across
  1. 1. A number that can be divided evenly by other numbers besides 1 and itself. Eg. 4 = 2 × 2
  2. 8. A number that can be positive (3), negative (-3), or zero. No fractions or decimals.
  3. 9. Breaking a number into smaller prime numbers multiplied together. Eg. 12 = 2 × 2 × 3
  4. 13. Writing a number to show the value of each digit. Eg. 327 = 300 + 20 + 7
  5. 14. The number you multiply by itself to get another number.
  6. 15. The numbers we use to count things: 1, 2, 3, 4, 5 …
  7. 16. A decimal that keeps repeating forever. Eg. 0.3333… = ⅓
Down
  1. 2. A number made by multiplying a number by itself eg. 3 × 3 = 9
  2. 3. A decimal that ends. Eg. 0.25.
  3. 4. A way to compare two amounts. Eg. If there are 2 dogs and 3 cats, the ratio is 2 : 3.
  4. 5. A small number that shows how many times to multiply a number by itself. eg: 2³=2 × 2 × 2
  5. 6. number A number that can only be divided evenly by 1 and itself eg. 2, 3, 5
  6. 7. A number that tells you how many parts out of 100. Example: 50 % means 50 out of 100 = ½
  7. 10. A number that can be written as a fraction. Eg. ½ = 0.5 = 50 %
  8. 11. Counting numbers and zero: 0, 1, 2, 3 …
  9. 12. A number with a decimal point. Eg. 3.5 means 3 and a half.