2. Ordering numbers
descending order: ascending order:
1. Partition the numbers.
2. Order the left hand digits first.
3. If they have same value, move to next column.
317 371 137
In descending order: 371, 317, 137
H T U
300 10 7
300 70 1
100 30 7
3. Arrange the following numbers in
descending order:
581 158 518
• Remember…
–Partition the numbers.
–Order the digits in the left hand column.
–If two digits have same value, move to
next column. Answer: 581 518 158
4. • Rainfall in different cities (measured in mm):
London 611.3
Rome 692.9
Moscow 613.6
Paris 611.4
• Order the rainfall in ascending order (remember
ascending means smallest to biggest)
Answers 611.3
611.4
613.6
692.9 Created by Richard Bull
