A class is divided into groups to work on a project.
There are $3$3 groups in total. Each group has $4$4 students and each student is given $2$2 number cards.
How many number cards are there in each group?
How many cards are there in the class in total?
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