Multiplying and Dividing Directed Numbers

In this spider diagram the four calculations give the answer in the middle. Work out the possible sets of missing values.

Here are some number cards $\boxed{ -5 } \boxed{-10} \boxed{ 2 } \boxed{ 10 }$. What numbers can you use so that each expression has the smallest possible answer?

$$\begin{gathered} -0.4\times \_\_\_\_\_+\_\_\_\_\_, \\ \_\_\_\_\_\times \_\_\_\_\_-0.5, \\ \_\_\_\_\_+\_\_\_\_\_÷-0.5, \\ \_\_\_\_\_-4.3\times \_\_\_\_\_. \end{gathered}$$

Here are some number cards $\boxed{ -5 } \boxed{-10} \boxed{ 2 } \boxed{ 10 }$. What numbers can you use so that each expression has the biggest possible answer?

$$\begin{gathered} -0.4\times \_\_\_\_\_+\_\_\_\_\_, \\ \_\_\_\_\_\times \_\_\_\_\_-0.5, \\ \_\_\_\_\_+\_\_\_\_\_÷-0.5, \\ \_\_\_\_\_-4.3\times \_\_\_\_\_. \end{gathered}$$

In these number wheels, opposite numbers multiply to give the numbers in the middle. Copy and complete the number wheel

In these number wheels, opposite numbers multiply to give the numbers in the middle. Copy and complete the number wheel

Which is the odd one out? Given reason for your answer

Complete the statement by using $+, -, \times$ and $÷$

$0.6$_____$-2$_____$0.7=-1$

Complete the statement by using $+, -, \times$ and $÷$

$8$_____$-0.8$_____$-10=18.8$

Complete the statement by using $+, -, \times$ and $÷$

$-9$_____$0.01$_____$900=-1$

Complete the statement by using $+, -, \times$ and $÷$

$-0.8$_____$10$_____$5=1.2$

Write true or false for the following calculation. If it's false correct it

Write true or false for the following calculation. If it's false correct it

$6÷-0.01=-600$

Write true or false for the following calculation. If it's false correct it

$-0.8÷-0.8=-1$

Write true or false for the following calculation. If it's false correct it

$-8\times -0.3=2.4$

Write true or false for the following calculation. If it's false correct it

$-0.8\times 5=-4$

Write true or false for the following calculation. If it's false correct it

$-18\times \frac{2}{3}=12$

Workout $-8-5\times 3$

Workout $-9\times -3-4$

Workout $81÷-9\times -8$

Workout $-6\times -3÷-2$