(-37) + 14 + 26 + 37 = [ (-37) + 37 ] + (14 + 26)= 0 + 40 = 40
(-24) + 6 + 10 + 24 = [(-24) + 24] + 6 + 10 = 16
15 +23 + (-25) + (-23) = [15 + (-25)] + [23+ (-23)]= -10 + 0= -10
60 + 33 + (-50) + (-33) =60 + (-50) + [ 33 + (-33)] = 10
\(\left(-37\right)+14+26+37\)
\(=\left[\left(-37\right)+37\right]+\left(14+26\right)\)
\(=0+40\)
\(=40\)
\(\left(-24\right)+6+10+24\)
\(=\left[\left(-24\right)+24\right]+\left(6+10\right)\)
\(=0+16\)
\(=16\)
\(15+23+\left(-25\right)+\left(-23\right)\)
\(=\left[23+\left(-23\right)\right]+\left[15+\left(-25\right)\right]\)
\(=0+\left(-10\right)\)
\(=-10\)
\(60+33+\left(-50\right)+\left(-33\right)\)
\(=\left[\left(-33\right)+33\right]+\left[\left(-50\right)+60\right]\)
\(=0+10\)
\(=10\)