3
Numeration and Notation
10 hundreds 1 thousand
Consider the number 2345. It can be represented as follows:
Thus, 2345 = 2 thousands + 3 hundreds + 4 tens + 5 units
= (2 x 1000) + (3 x 100) + (4 x 10) + (5 x 1)
= 2000 + 300 + 40 + 5
In words, 2345 is written as: Two thousand three hundred and forty ve
2 thousands
2 x 1000
3 hundreds
3 x 100
4 tens
4 x 10
5 units
5 x 1
Tip: 10 hundreds make 1 thousand
Tip: 4-digit numbers
How many hundred
ats make 1
thousand?
When you add 10 hundred ats together, you get 1 thousand.