Complete the following pattern.
Start at $8$8 and double the answer each time.
$8$8, $\editable{}$, $\editable{}$, $\editable{}$
Start at $4$4 and multiply by $10$10 each time.
Choose the rule that describes the pattern $20,40,80,160$20,40,80,160.
Complete the following pattern.
uses mental and informal written strategies for multiplication and division
generalises properties of odd and even numbers, generates number patterns, and completes simple number sentences by calculating missing values