A first-grade commutative and associative properties worksheet where students solve ten addition problems by adding the numbers in any order or group. Includes an answer key and a handy reminder box for no-prep math practice.

This Adding In Any Order Worksheet helps 1st graders see that 3 + 4 and 4 + 3 always match, using picture groups first and quick fact flips second. Answer key included, so practice takes minutes to check.

The Commutative Property Addition Worksheet gives 1st Grade students six addition facts to write again with the numbers turned around. An answer key is included, so turnaround facts check themselves.

This why it works explaining addition and subtraction worksheet has 2nd graders jump by tens and ones on open number lines to add and subtract within 100. An answer key is included.

This if I know this then I know addition worksheet helps 1st grade students use turnaround facts to solve sums within 20, with an answer key included for quick, confident checking.

This using strategies to solve equations worksheet helps 1st graders add three numbers by making a ten first. An answer key is included, so checking work is quick and easy.