**1.2.1 Directed Numbers, PT3 Practice 1**

**Question 1:**

Complete the following calculation.

$\begin{array}{l}-4.6\times \left(\frac{3}{5}-1\frac{3}{4}\right)=-4.6\times \left(0.6-\overline{)x}\right)\\ \text{}=-4.6\times \overline{)x}\\ \text{}=\overline{)x}\end{array}$

$\begin{array}{l}-4.6\times \left(\frac{3}{5}-1\frac{3}{4}\right)=-4.6\times \left(0.6-\overline{)x}\right)\\ \text{}=-4.6\times \overline{)x}\\ \text{}=\overline{)x}\end{array}$

Solution:Solution:

**Question 2:**

Complete the following calculation.

$\begin{array}{l}-43+35\xf71\frac{1}{6}=-43+35\xf7\frac{7}{6}\\ \text{}=-43+35\times \overline{)x}\\ \text{}=-43+\overline{)x}\\ \text{}=-13\end{array}$

$\begin{array}{l}-43+35\xf71\frac{1}{6}=-43+35\xf7\frac{7}{6}\\ \text{}=-43+35\times \overline{)x}\\ \text{}=-43+\overline{)x}\\ \text{}=-13\end{array}$

Solution:Solution:

**Question 3:**

Calculate each of the following.

(a) (–9) × 14

(b) 6.7 – 3.2 × (–0.5)

(c) –144 ÷ (–8) ÷ (–2)

Solution:Solution:

**–126**(a) (–9) × 14 =

(b) 6.7 – 3.2 × (–0.5) = 6.7 – (–1.6)

= 6.7 + 1.6

=

**8.3** (c) –144 ÷ (–8) ÷ (–2) = –144 ÷ 4

=

**36**

**Question 4:**

Calculate the value of

$0.6+\left(-1\frac{2}{3}\right)\xf7\left(\frac{4}{15}\right)-2$

Solution:Solution:

**Question 5:**

Calculate the value of

$\left(-0.6\times 1\frac{1}{4}\right)-\left[-1.6\times \left(-1.5\right)\right]\xf70.4$

Solution:Solution: