Question

tara models an addition problem using five red tiles and seven blue tiles. what is the final sum for this problem?
○ 2
○ -2
○ -12
○ 12

Explanation:

Step1: Assign values to tiles

Assume red tiles are negative (e.g., -1 each) and blue tiles are positive (e.g., +1 each). So 5 red tiles: \(5\times(-1)= -5\), 7 blue tiles: \(7\times(+1)= +7\).

Step2: Calculate the sum

Add the two results: \(-5 + 7 = 2\).

Answer:

2 (corresponding to the option "2")