Chapter 40, Problem 20A

In Exercises 17 through 20, subtract the following signed numbers as indicated.
a. $5\frac{7}{8}-\left(-4\frac{1}{8}\right)$
b. $\left(6+10\right)-\left(-7+9\right)$
c. $\left(-14+5\right)-\left(2-10\right)$
d. $\left(7.23+6.81\right)-\left(-10.73\right)$
e. $[-8.76+\left(-5.83\right)]-[12.6-\left(-0.97\right)]$