Type:

E-book, Other

Description:

Friendly numbers (43 + 27 add tens, then ones) Moving 27 to 30, adding on. Relating compensation strategies to the number line. (43 + 27 = 43 + 20 + 7 or 43 + 27 = 43 + 7 + 20) Addition in any order, compensation, decomposition of numbers

Subjects:

  • Mathematics > General

Education Levels:

  • Grade 1
  • Grade 2
  • K

Keywords:

Compensation number lines mental strategies

Language:

English

Access Privileges:

Members

License Deed:

Creative Commons Attribution Non-Commercial

Collections:

None
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