The calculation needed to find the cost of the factory tour was $5(29 students).

Melissa used the expression $5(20 + 9).

Mrs. Garcia used the expression $5(14 + 15).

Explain why Mrs. Garcia’s method may be more difficult to do mentally.

The calculation needed to find the cost of the factory tour was $5(29 students).

Melissa used the expression $5(20 + 9).

Mrs. Garcia used the expression $5(14 + 15).

Explain why Mrs. Garcia’s method may be more difficult to do mentally.