Question
Answer
$$2+3+9-10=4$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}2+3+9-10& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5+(-1) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}5-1 \xlongequal{ } \\[1 em] & \xlongequal{ }4\end{aligned} $$ | |
| ① | Combine like termsCombine like terms |
| ② | $ + \, ( \, -1 \, ) = -1 $ |
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