Page 17 - Revised Maths Wisdom Class - 3

2 4-Digit Numbers

Warm Up

● We have learnt about 2-digit and 3-digit numbers.
● Two digit numbers have tens and ones.
● Three digit numbers have hundreds, tens and ones.
● The smallest three digit number is 100.
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XI XII I
● The largest three digit number is 999. X II
● You have ever seen clocks like clock A and clock B. IX III
VIII IV
● Here, numbers are diff erent in clock A and clock B. VII VI V
● We can easy read the time in these clocks. Clock A Clock B

Introduction to 4-digit Numbers
Thousands Hundreds Tens Ones
We know that the largest 3-digit number 9 9 9
is 999, but what happens if we add 1 to it? + 1
999 + 1. We write it as shown here: 1 0 0 0

● We write 1000 in words as one thousand. Thus, 1000 is the fi rst four digit number.

● In the place value chart, the fourth place from the right is called the thousands place.

● The smallest four-digit number is 1000.

● It is equal to ten hundreds. Thus, ten hundreds = 1 thousand.

Reading 4-digit Numbers

We take a 4-digit number such as 2394.

Thousands Hundreds Tens Ones

2 3 9 4

2 thousands 3 hundreds 9 tens 4 ones

= 2000 = 300 = 90 = 4