Level 6 Chapter 1 Vocab

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Across
  1. 2. word name A combination of digits and words. For example, the number 7,800,000 has a short words name of 7 million, 800 thousand
  2. 5. form A number written in the usual way, using place values and digits. For example: 3,410
  3. 7. When writing large numbers, each group of 3 digits starting from the right is called a period. For example, in 42,376, “376” is in the first period and “42” is the start of the second period.
  4. 10. powers: When the exponent is negative, for example: 10-4
  5. 12. shows or tells
  6. 13. Numbers below zero are called negative numbers. They are written with a “-” in front of the number. For example, -10
  7. 14. name A number written using words. For example: Three thousand, four hundred ten
  8. 15. Using numbers, measurements and shapes to figure things out
  9. 16. form A way to write numbers. It consists of a base and an exponent.
  10. 17. form Numbers written out in an expanded way. For example, the number 389 in expanded form is written as: 300+80+9
  11. 19. Matching or being similar to something else
  12. 20. Tells you what to do with the base
  13. 21. Numbers above zero are called positive numbers.
Down
  1. 1. to use a simpler number that is close enough to the actual number
  2. 3. A thousand billions
  3. 4. The number with which something is done
  4. 6. One of the ten marks we use to write numbers: 0,1,2,3,4,5,6,7,8 and 9 are the digits we use.
  5. 7. value The value of a place is called its place value. For example, in the number 258, the number “2” is in the hundreds place.
  6. 8. Put in the correct order
  7. 9. Numbers which are written with a dot to show where the fraction part of the number starts. The first digit after the dot is tenths.
  8. 11. to make bigger
  9. 14. numbers A number for whole amounts, not parts of things, like 3 or 456 or 9088.
  10. 17. Numbers which can be written in “exponent form.” An exponent tells how many times to use the base as a factor. For example 34
  11. 18. In mathematics, “power” is another way of telling an exponent. For example: 3 to the fourth power means 34 or 3x3x3x3