2. Chapter 1 Vocabulary
•compare •millions
•digit •not equal to
•equal to (=) •order
•expanded form •period
•greater than (>) •place value
•less than (<) •standard form
•word form

4. period

5. period
each group of three digits
separated by commas in a
multi-digit number

7. standard form

8. standard form
a way to write numbers by
using digits

10. expanded form

11. expanded form
a way to write numbers by
showing the value of each
digit

13. word form

14. word form
a way to write numbers by
showing the value of each
digit

16. millions

17. millions
the period to the left of the
thousands period

19. compare

20. compare
to describe whether
numbers are equal to, less
than, or greater than each
other

22. greater than (>)

23. greater than (>)
a symbol used to compare two
numbers, with the greater
number given first

25. less than (<)

26. less than (<)
a symbol used to compare two
numbers, with the lesser number given
first

28. digit

29. digit
Any one of the ten symbols
0, 1, 2, 3, 4, 5, 6, 7, 8, or 9 used
to write numbers

31. equal to (=)

32. equal to (=)
Having the same value
Example: 4+4 is equal to 3+5

34. order

35. order
A particular arrangement or
placement of things one after
the other

37. place value

38. place value
The value of a digit in a number,
based on the
location of the digit