Answer:
(21+9)+8
Step-by-step explanation:
The associative property allows you to group numbers in different ways.
21 + (9 + 8) = (21+9)+8
Answer:
9+(21+8) or 8+(21+9)
Step-by-step explanation:
Associative property is the property that explains how it does not matter the order of which an equation is multiplied or added by. Switching 9 and 21 will get your answer the same as switching any other number to the outside of the parenthesis.