−2−4+6−1= -2-4+6-1= −2−4+6−1=
According to the order of operations, we solve the exercise from left to right:
−2−4=−6 -2-4=-6 −2−4=−6
−6+6=0 -6+6=0 −6+6=0
0−1=−1 0-1=-1 0−1=−1
−1 -1 −1