Question

Situation C. Luisa and Sam Keep ScoreLuisa answers a 300-point question correctly and a 400-pointquestion incorrectly. Luisa and Sam use different methods to keepscore:Il150Luisa's MethodSam's MethodOR300 - 400 =-100300 + -400 =-100Who is correct? Will this method always work for keeping score?Explain your reasoning.

Answer 1

Solution:

Luisa's method is given below as

$300-400=-100$

Sam's method is given below as

$300+(-400)=-100$

To score a point correctly will take a positive sign, while to get an incorrect point will take a negative sign and hence be substracted

Luisa's method subtracted directly the incorrect points from the correct points to get the remaining scores

While,

Sam's method added the correct score to the incorrect score while introducing a negative sign in front of the 400

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