Explore
Let's try our fun and exciting maths game to explore this activity.
Skills Building
Today, we're going to learn a very simple strategy for multiplying 3, 6 and 12.
Strategy for Multiplying by 3
As you know, Multiplying by 3 is really easy right?
We have to add three copies of the number together and we will get the answer.
For example:
1 x 3 = 3 1 + 1 + 1 = 3
2 x 3 = 6 2 + 2 + 2 = 6
4 x 3 = 12 4 + 4 + 4 = 12
8 x 3 = 24 8 + 8 + 8 =24
We've added three copies of the number to each other.
Strategy for multiplying a number by 6:
When we multiply a number by 6, we get the same result as if we multiplied the number by 3 and then multiplied that by 2.
For example:
6 x 6 = 36
If we're doing this by 2, it looks like this:
6 x 3 = 18
18 x 2 = 36
Strategy for Multiplying by 3
As you know, Multiplying by 3 is really easy right?
We have to add three copies of the number together and we will get the answer.
For example:
1 x 3 = 3 1 + 1 + 1 = 3
2 x 3 = 6 2 + 2 + 2 = 6
4 x 3 = 12 4 + 4 + 4 = 12
8 x 3 = 24 8 + 8 + 8 =24
We've added three copies of the number to each other.
Strategy for multiplying a number by 6:
When we multiply a number by 6, we get the same result as if we multiplied the number by 3 and then multiplied that by 2.
For example:
6 x 6 = 36
If we're doing this by 2, it looks like this:
6 x 3 = 18
18 x 2 = 36
Challenge
1. Remembering
|
2. Understanding
|
3. Applying
|
4. Analysing
|
5. Evaluating
|
6. Creating
|
