What you need to know

Things to remember:

  • Everything else stays the same, only the 1000s change.
  • “More than” is the same as adding and “less than” is the same as taking away
  • If there is only 1 thousand and we take 1 thousand away, we don’t have any left!

Usually you will need to find something like:

1000 greater than 3244

Or

1000 less than 1677

Before starting, let’s look at some vocabulary:

“Greater than” is the same as saying “more than”, which we will need to add

“Less than” is the same as taking away

 So, really, this topic is just adding and subtracting!

The easiest way to see how we do this is to split up a number into the thousands and “everything else”.

3244+1000 = 3000 + 244 + 1000 = 3000 + 1000 + 244 = 4000 + 244 = 4244

Tip: Notice that only the thousands changed, the other numbers stayed the same.

6534+1000 = 7534

928+1000 = 1928

 When subtracting, we always put the 1000 on the right of the take away sign!

5677 - 1000 = 5000 + 677 - 1000 = 5000 -1000 + 677 = 4000 + 677 = 4677

Tip: Notice that the other numbers stayed the same and only the 1000s changed.

2345 - 1000 = 1345

4263 - 1000 = 3263

Tip: If there’s only one thousand, then it disappears when we subtract!

1232 -1000 = 232

1665 -1000 = 665

Example Questions

Question 1: What is 4782+1000?

Answer

4782+1000 = 4000 + 782 +1000 = 4000 + 1000+782=5000+782=5782

Our answer is 5782.

Question 2: What is 1672 - 1000?

Answer

1672 - 1000 = 1000 + 672 - 1000 = 1000 – 1000 + 672 = 0+672=672

 

Our answer is 672