In this activity, we will be looking at using arrays to make multiplication number sentences.
Let's have a look at what this array means:
We need to look at how many stars are in each row and how many rows there are.
There are 2 stars in each row.
There are 4 rows.
This is 4 sets of 2 and this is written as 4 x 2 =
After the = we write the total amount, how many stars altogether?
If we count down the 4 rows of 2 we can work it out! 2, 4, 6, 8.
There are 8 stars altogether, this gives us the multiplication sentence:
4 x 2 = 8
For some of the questions, we will look at doubling.
Doubling is the same as multiplying by 2. Here we have 2 sets of 5 circles.
This is 5 + 5 as it is the same number added together.
This can also be written as 5 x 2 = or double 5 =
Double 5 = 10
This is because we have added both sets together: 5 + 5 = 10
Shall we have a go at some questions now?