What is the purpose of using the associative and commutative properties for addition of whole numbers?
?
A. ?It is important that children learn that a + b is the same as b + a. This understanding reduces the number of addition facts that they have to learn.
B. ?Some groupings and numbers are easier to find their sums than other groupings.
C. ?Some addition problems cannot be solved without changing their order or regrouping.
D. ?The commutative property can help students understand that different answers in algebra are equivalent.
E. ?All of the above
F. ?a, b, and d are true.
Answer: F
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