Ordering Numbers
means to arrange them from least to greatest or
from greatest to least.
You can also use these symbols
> (greater than) < (less than) = (equal to)
between numbers to show order from
least to greatest or
greatest to least.
If comparing two 3-digit numbers, put them in order by the first digit
–the digit in the hundred’s place.
439 625
Since 4 < 6
Then… 439 < 625
Sometimes the first digit is the same.
435 425
When this happens, look at the next digit (the ten’s place).
435 425
Since 3 > 2
Then… 435 > 425
But, what if the first two digits are the same?
439 438
Look at the digit in the one’s place.
Since 9 > 8
Then… 439 > 438
Let’s look at putting 3 numbers in order.
469, 649, and 964 are in order from the least to the greatest.
469 < 649 < 964
964, 649 and 469 are in order from greatest to least.
964 > 649 > 469
Here are a few games to help practice with:
1. boxing game
2. Robot Machine
Source: http://www.studyzone.org/testprep/math4/e/ordernumbers3l.cfm