1.1 Exercise 17

Use the properties of real numbers to rewrite and simplify each expression. State which properties apply.

1. ⓐ $\left(- \frac{23}{5}\right) \cdot \left[11 \cdot \left(- \frac{5}{23}\right)\right]$
2. ⓑ $5 \cdot \left(6.2 + 0.4\right)$
3. ⓒ $18 - \left(7 −15\right)$
4. ⓓ $\frac{17}{18} + \left[\frac{4}{9} + \left(- \frac{17}{18}\right)\right]$
5. ⓔ $6 \cdot \left(−3\right) + 6 \cdot 3$