**Year 4 Maths – Count in 6, 7, 25, and 100** *KS2 Revision*

## What you need to know

**Things to remember:**

- We can learn patterns for count in
**6**s,**25**s, and**100** - The best way to learn how to count in
**7**s is to practice.

Usually, when counting up in multiples, we just need to find the next number, which is the same as counting up in our times tables! So, how would we find the next number in this list 6, 12, 18, 24…?

**Step 1:** Notice how much we add each time.

6 \textbf{+6} = 12

12 \textbf{+6} = 18

So, the numbers are going up by 6 each time.

**Step 2:** Add your number from **Step 1** to the last number you have.

24 \textbf{+6} = 30

**Extra:** We can keep counting in multiples of 6 by adding the same amount each time!

30, 36, 42, 48, 54…

Although** 25 **and **100** are big numbers, they’re actually quite easy once we learn the pattern!If we look at the first 9 lots of **25**, we can see a nice pattern:

0, 25, 50, 75, 100, 125, 150, 175, 200, 225 …

We can see that there is a repeating pattern of 0, 25, 50, 75, with just the **100**s ever really changing.

700, 725, 750, 775, 800, 825, 850, 875, 900…

Remember how easy counting in **10**s is? Well counting in **100**s is just as nice, all we have to do is put a 0 on the end!

10, 20, 30, 40, 50…

100, 200, 300, 400, 500…

** ****7**s are the hardest to count up in, because we don’t have a nice pattern until we reach 70.

7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91 …

** ****Tip**: Practicing adding 7s to a single digit number is helpful for seeing what the units of your next number will be!

+ 0 1 2 3 4 5 6 7 8 9

7 7 8 9 10 11 12 13 14 15 16

## Example Questions

**Question 1:** Find the next number in the sequence:

400, 500, 600, 700…

700+\textbf{100}=800

The next number will be 800.

**Question 2:** Find the next number in the sequence:

28, 35, 42, 49…

49+\textbf{7}=56

The next number will be 56