Ordering numbers, step by step
Once children can compare two numbers, the next step is lining up several at once.
The question
Order: 13, 2, 0, 17
given:132017
sorted:021317
sorted:021317
0 < 2 < 13 < 17
- Sort by how many DIGITS first — it splits the pile before any comparing is needed, and it is what stops 2 being put after 13.
- Smallest first: 0, 2, 13, 17.
- Written with the signs: 0 < 2 < 13 < 17. Every open end faces the bigger number, all the way along.
How it works.
- 01
Sort by how many DIGITS first — it splits the pile before any comparing is needed, and it is what stops 2 being put after 13.
- 02
Smallest first: 0, 2, 13, 17.
- 03
Written with the signs: 0 < 2 < 13 < 17. Every open end faces the bigger number, all the way along.