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E:\Working\Orange_Education\Math_Genius_3\Open_Files\CHAP_01
\ 01-Oct-2025 Bharat Arora Proof-10 Reader’s Sign _______________________ Date __________
builDiNg 4-Digit Numbers
We use groups, like ones, tens, hundreds and thousands to make a 4-digit number.
Th H t O
1000 + 200 + 40 + 2 = 1 2 4 2
We read 1242 as one thousand two hundred forty-two.
Be Aware
Do not add an ‘s’
Th H t O after the name
of the place while
3000 + 400 + 10 + 6 = 3 4 1 6 reading/writing
We read 3416 as three thousand four hundred sixteen. number names.
Look at the pictorial representations of some more 4-digit numbers.
(a)
Th H t O
2000 + 400 + 70 + 3 = 2 4 7 3
Two thousand four hundred seventy-three
Think Tank
1. There are ___ hundreds
in one thousand.
(b) 2. There are ___ tens in
one thousand.
Th H t O
6000 + 100 + 50 = 6 1 5 0
Six thousand one hundred fifty
(c)
Th H t O
3000 + 30 + 8 = 3 0 3 8
Three thousand thirty-eight
Math Insight
We put a zero (0) to fill in places where no place value is mentioned.
In a 4-digit number, if there is a 0 at the hundreds, tens or ones place, we do not mention it
in the number name.
10 Mathematics-3
