Question

Maya wrote the expression 3+5+4.5 to represent the total distance that she traveled. Which statement best describes Maya’s expression? Maya’s expression will generate the correct sum because of the associative property. Maya’s expression will generate the correct sum because of the commutative property. Maya’s expression will generate the wrong sum because she violated the associative property. Maya’s expression will generate the wrong sum because she violated the commutative property

Answer 1

The answer would be the option saying that the problem will be correct because she used the commutative property (b)

Explanation:

Maya changed the order of the number of the expression. She did not used parenthesis to change the way she combined them. Got it right on Ed20

Answer 2

The statement, Maya’s expression will generate the correct sum because of the associative property will describe the best.

Solution:

Maya’s expression will generate the correct sum because of the associative property.

Maya wrote the expression
`3+5+4.5`

As per commutative property of addition if we change the order still the sum will be same, which means
`(a + b) = (b + a)`

Here also,
`(3 + 5) + 4.5 = 8+4.5 = 12.5`

Again
`3 + (5+4.5) = 3+9.5 = 12.5`

As both the results are same, hence this is meeting the commutative property of addition.