Grade 3 - Algebra - Properties

Tools: pointer cross off highlighter pencil eraser

Identify all number sentences which demonstrate the Commutative Property of Addition.

7 + 2 = 1 + 8

2 + 0 = 2

3 + 9 = 9 + 3

2 + 3 + 4 = 4 + 3 + 2

17 + 22 = 22 + 17

Severity: Warning

Message: touch(): Unable to create file sessions/ci_session862ae3f29b922a4c2a61087238a145831b257973 because No such file or directory

Filename: drivers/Session_files_driver.php

Line Number: 252

Backtrace:

Severity: Warning

Message: session_write_close(): Failed to write session data using user defined save handler. (session.save_path: sessions)

Filename: Unknown

Line Number: 0

Backtrace: