Year 3 Maths – How to count in multiples of 4, 8, 25, and 100 KS2 Revision
What you need to know
Things to remember:
- To compare numbers we start from the biggest place value and work towards the right until one number is bigger than the other.
- To keep track of a list when order, cross them out as you go!
- Ascending means “getting bigger”.
- Descending means “getting smaller”.
- If you know your place values, it will make this topic much easier.
Ordering numbers is just like doing lots of comparisons, but how do we compare numbers?
Which is bigger, 556 or 565?
Starting with the 100s: Both have 5 100s (This doesn’t help).
Moving onto the 10s: Our first number has 5 10s, and our second number has 6 10s.
Because the pace value is bigger in the second number, we know this has to be biggest!
565 is bigger than 556.
When we order numbers, we are just doing lots of comparisons.
Put the following numbers in descending order (a fancy way of saying biggest to smallest)
56 256 567 346 222
We can put a line through as we go
56 256 567 346 222
567
56 256 567 346 222
567 346
56 256 567 346 222
567 346 256
56 256 567 346 222
567 346 256 222
56 256 567 346 222
567 346 256 222 56
Example Questions
Question 1: Put the following numbers in order
436 345 567 789 344
436 345 567 789 344
789
436 345 567 789 344
789 567
436 345 567 789 344
789 567 436
436 345 567 789 344
789 567 436 345
436 345 567 789 344
789 567 436 345 344
Question 2: Put the following numbers in order
285 457 476 288 123
285 457 476 288 123
476
285 457 476 288 123
476 457
285 457 476 288 123
476 457 288
285 457 476 288 123
476 457 288 285
285 457 476 288 123
476 457 288 285 123