N2A5TNp13

Answer to Problem 13:

$4.00 a pair.

(Note: This is an example of a partitive or distribution problem—How is $12 distributed across three pairs? It is a dealing-out type of problem—I have three pairs, and I know that altogether they cost $12. So, I can deal out $1 at a time to each pair until I have used all 12 dollars.)

TEACHER NOTES:

Students need to consider both forms of division problems. Students who believe or are lead to believe that division is just a quick way of doing subtraction or repeated subtraction are often hindered in developing the part/whole relationship between multiplication and division.[1]