Final answer:
Representing 5-(-3) with +/- tiles involves changing the subtraction of a negative to the addition of a positive, resulting in 5+3, which equals 8 positive tiles.
Step-by-step explanation:
To represent the mathematical expression 5-(-3) using +/- tiles, we need to consider the expression in terms of addition and subtraction of positive and negative numbers. In this case, subtracting a negative number is the same as adding its positive counterpart. So, 5-(-3) becomes 5+3. Therefore, you would have five positive tiles representing the number 5 and three more positive tiles added to them, which represent the subtraction of a negative 3, or adding a positive 3.
Using tiles to visualize this, imagine you have 5 positive tiles laid out, and you add 3 more positive tiles next to them, making a total of 8 positive tiles. This shows that 5-(-3) equals 8, which is the result you get when you change the sign of the negative number to positive and then perform the addition.