Question

Over the course of a weekend, the temperature drops 14.2 degrees on Friday, rises 13 degrees on Saturday, and drops another 10.8 degrees on Sunday. What is the overall change in temperature for the weekend?

Answer 1

$\bf \begin{array}{llrll} friday&\downarrow &-14.20\\ saturday&\uparrow &+13.00\\ sunday&\downarrow &-10.80\\ &&\text{\textemdash\textemdash\textemdash}\\ &\Downarrow&-12.00 \end{array}$