1. (10 points) Calculate: $124+129+106+141+237-500+113=(\quad)$
A. 350
B. 360
C. 370
D. 380
【Analysis】According to the commutative and associative laws of addition, simplify and calculate.
【Solution】Solution: $124+129+106+141+237-500+113$
$$
\begin{array}{l}
=(124+106)+(129+141)+(237+113)-500 \\
=230+270+350-500 \\
=850-500 \\
=350
\end{array}
$$

Therefore, the answer is: A.