Question

Sammy had 250 points. On his next move, his score became 0.Which equation represents the situation? Explain.Equation 1250 - 250 = 0Equation 2250 + -250

Answer 1

We know that the initial state is 250 and the final state is 0.

Then, we can express the relation between this two states with a difference that shows the changes between this two states.

Because the score goes down by 250 points, we can write:

$\begin{gathered} \text{Initial state}+\text{Variation}=\text{Final state} \\ 250+(-250)=0 \\ 250-250=0 \end{gathered}$

Answer: Equation 1, because it shows the initial and final scores and the variation between them.