This activity is about multiplying by 12.
Let's look at the twelve times table below:
1 x 12 = 12
2 x 12 = 24
3 x 12 = 36
4 x 12 = 48
5 x 12 = 60
6 x 12 = 72
7 x 12 = 84
8 x 12 = 96
9 x 12 = 108
10 x 12 = 120
11 x 12 = 132
12 x 12 = 144
Once you have learnt your other times tables (1 - 11) then the twelves is quite easy, as you've already learnt the facts.
For example, if we know 6 x 12 = 72, we also know 12 x 6 = 72
If you come across one you don't know from memory, here is a little tip that uses your 2 and 10 times tables!
Find 7 x 12
Step 1: 7 x 10 = 70
Step 2: 7 x 2 = 14
Step 3: 70 +14 = 84
7 x 12 = 84
Let's try an example question together!
Example
A cookie has 9 chocolate chips.
How many chocolate chips do 12 cookies have?
What is 9 times 12?
Answer
Step 1: 9 x 10 = 90
Step 2: 9 x 2 = 18
Step 3: 90 +18 = 108
9 × 12 = 108
Now try the questions for yourself.