What property of addition is shown in the following number sentence? why?
6 answers
No number sentence given.
opps sorry 7+(3+5)=(7+3)+5
Associative property, because the parenthesis are just moved around.
http://www.algebra.com/algebra/homework/Distributive-associative-commutative-properties/change-this-name23395.lesson
Explain why 7*8 is not a number sentence
20 × (10 + 6) = (20 × 10) + (20 × 6)