Class 2
Class 3
CBSE
UP Board
📘 What’s inside:
Concept 1 — Number Names 1 to 20
Every number has a name in words. Numbers 1 to 20 are the building blocks — they appear inside every bigger number. Learn these first and the rest becomes easy.
⚠ Special Names — Learn These First
- 11 → eleven (not “oneteen”)
- 12 → twelve (not “twoteen”)
- 13 → thirteen (note the spelling)
- 15 → fifteen (not “fiveteen”)
- 18 → eighteen (only one ‘t’)
▶ Numbers 1 to 10
▼
1one
2two
3three
4four
5five
6six
7seven
8eight
9nine
10ten
▶ Numbers 11 to 20 — Special Names
▼
11eleven ⚠
12twelve ⚠
13thirteen ⚠
14fourteen
15fifteen ⚠
16sixteen
17seventeen
18eighteen ⚠
19nineteen
20twenty
▶ Solved Example 1
Write in words: (a) 7 (b) 12 (c) 18
- a7 is a basic number → seven
- b12 has a special name → twelve (not twoteen)
- c18 has a special spelling → eighteen (one ‘t’ only)
(a) seven | (b) twelve | (c) eighteen
✍ Practice — Concept 1
Q1
Write in words: 4, 9, 15, 19.
▼
Answer
4 → four | 9 → nine | 15 → fifteen | 19 → nineteen
Q2
Write in figures: eleven, thirteen, eighteen, twenty.
▼
Answer
eleven → 11 | thirteen → 13 | eighteen → 18 | twenty → 20
Q3
Which is correct? (a) oneteen or eleven (b) fiveteen or fifteen (c) eightteen or eighteen
▼
Answer
(a) eleven | (b) fifteen | (c) eighteen
Concept 2 — Number Names 21 to 100
From 21 onwards there is a pattern: tens word + hyphen + ones word. Once you know the tens, you can build any number up to 99.
▶ The Pattern
- Twenty + one → twenty-one
- Thirty + five → thirty-five
- Sixty + eight → sixty-eight
- Always use a hyphen between the tens word and the ones word.
- When ones digit is 0, just say the tens: 60 → sixty (no hyphen needed).
⚠ Tricky Tens — Must Know
- 40 → forty (no ‘u’ — not “fourty”)
- 50 → fifty (not “fivety”)
- 90 → ninety (not “ninty”)
▶ Numbers 21 to 40
▼
21twenty-one
22twenty-two
23twenty-three
24twenty-four
25twenty-five
26twenty-six
27twenty-seven
28twenty-eight
29twenty-nine
30thirty
31thirty-one
32thirty-two
33thirty-three
34thirty-four
35thirty-five
36thirty-six
37thirty-seven
38thirty-eight
39thirty-nine
40forty ⚠
▶ Numbers 41 to 60
▼
41forty-one
42forty-two
43forty-three
44forty-four
45forty-five
46forty-six
47forty-seven
48forty-eight
49forty-nine
50fifty ⚠
51fifty-one
52fifty-two
53fifty-three
54fifty-four
55fifty-five
56fifty-six
57fifty-seven
58fifty-eight
59fifty-nine
60sixty
▶ Numbers 61 to 80
▼
61sixty-one
62sixty-two
63sixty-three
64sixty-four
65sixty-five
66sixty-six
67sixty-seven
68sixty-eight
69sixty-nine
70seventy
71seventy-one
72seventy-two
73seventy-three
74seventy-four
75seventy-five
76seventy-six
77seventy-seven
78seventy-eight
79seventy-nine
80eighty
▶ Numbers 81 to 100
▼
81eighty-one
82eighty-two
83eighty-three
84eighty-four
85eighty-five
86eighty-six
87eighty-seven
88eighty-eight
89eighty-nine
90ninety ⚠
91ninety-one
92ninety-two
93ninety-three
94ninety-four
95ninety-five
96ninety-six
97ninety-seven
98ninety-eight
99ninety-nine
100one hundred
▶ Solved Example 2
Write in words: (a) 37 (b) 50 (c) 92
- a30 = thirty, 7 = seven → thirty-seven
- b50 has no ones digit → just fifty (tricky spelling — no ‘u’)
- c90 = ninety, 2 = two → ninety-two
(a) thirty-seven | (b) fifty | (c) ninety-two
✍ Practice — Concept 2
Q4
Write in words: 45, 63, 80, 99.
▼
Answer
45 → forty-five | 63 → sixty-three | 80 → eighty | 99 → ninety-nine
Q5
Write in figures: forty, seventy-six, ninety, fifty-eight.
▼
Answer
forty → 40 | seventy-six → 76 | ninety → 90 | fifty-eight → 58
Build your skills further with
Indian Place Value System (Lakhs & Crores)
— don't forget to grab the
Free Worksheet
for practice. Once you're comfortable, check out
International Place Value System
and test yourself with its
accompanying worksheet.
Concept 3 — Hundreds: 100 to 900
When a number has a hundreds digit, we say that digit followed by the word hundred. The word “hundred” never takes an ‘s’ at the end.
▶ Rule
- [hundreds digit] + hundred → one hundred, two hundred …
- Never say “hundreds” — always hundred (no s).
▶ 100 to 900 — The Hundreds
▼
100one hundred
200two hundred
300three hundred
400four hundred
500five hundred
600six hundred
700seven hundred
800eight hundred
900nine hundred
✍ Practice — Concept 3
Q6
Write in words: 300, 700, 900.
▼
Answer
300 → three hundred | 700 → seven hundred | 900 → nine hundred
Q7
True or False: 400 is written as “four hundreds”.
▼
Answer
False. It is four hundred — no ‘s’ at the end.
Concept 4 — The “And” Rule for 3-Digit Numbers
When a 3-digit number has a non-zero value after the hundreds, we connect the parts with the word and. This single rule lets you name every number from 101 to 999.
▶ The Formula
- [hundreds] + and + [last two digits as a number]
- 234 → two hundred and thirty-four
- 407 → four hundred and seven
- 580 → five hundred and eighty
- Special: if last two digits are 00, no “and” → 500 = five hundred
How 234 is built:
234
=
200two hundred
+
and
+
34thirty-four
▶ two hundred and thirty-four
How 407 is built:
407
=
400four hundred
+
and
+
7seven
▶ four hundred and seven
How 500 is built:
500
=
500five hundred
+
00nothing
▶ five hundred (no “and” needed)
▶ Solved Example 3
Write in words: (a) 637 (b) 804 (c) 920
- a600 = six hundred | 37 = thirty-seven → six hundred and thirty-seven
- b800 = eight hundred | 04 = four → eight hundred and four
- c900 = nine hundred | 20 = twenty → nine hundred and twenty
(a) six hundred and thirty-seven | (b) eight hundred and four | (c) nine hundred and twenty
▶ Solved Example 4 — Figures from words
Write in figures: three hundred and twelve
- 1“three hundred” → 3 in hundreds place.
- 2“twelve” → 12 in tens & ones.
- 3Combine: 312.
three hundred and twelve → 312
✍ Practice — Concept 4
Q8
Write in words: 132, 208, 315, 500.
▼
Answer
132 → one hundred and thirty-two
208 → two hundred and eight
315 → three hundred and fifteen
500 → five hundred
208 → two hundred and eight
315 → three hundred and fifteen
500 → five hundred
Q9
Write in figures: seven hundred and nine, four hundred and fifty, eight hundred.
▼
Answer
seven hundred and nine → 709
four hundred and fifty → 450
eight hundred → 800
four hundred and fifty → 450
eight hundred → 800
Concept 5 — Thousands: 1,000 to 9,000
Just like hundreds, we say the digit then the word thousand. Never add ‘s’ — it is always thousand, not “thousands”.
▶ 1,000 to 9,000 — The Thousands
▼
1,000one thousand
2,000two thousand
3,000three thousand
4,000four thousand
5,000five thousand
6,000six thousand
7,000seven thousand
8,000eight thousand
9,000nine thousand
✍ Practice — Concept 5
Q10
Write in words: 1,000 4,000 9,000.
▼
Answer
1,000 → one thousand | 4,000 → four thousand | 9,000 → nine thousand
Want to strengthen your English grammar? Dive into
Proper and Common Nouns – Rules & Examples
and put your knowledge to the test with the
Free Practice Worksheet.
और हिंदी व्याकरण में महारत हासिल करने के लिए
जातिवाचक संज्ञा – परिभाषा और भेद
पढ़ें और
अभ्यास वर्कशीट
से अभ्यास करें, साथ ही
द्रव्यवाचक संज्ञा – परिभाषा और प्रकार
को समझें और
वर्कशीट
से अभ्यास करें।
Concept 6 — 4-Digit Numbers up to 9,999
Now we put everything together. A 4-digit number is built from thousands + hundreds + and + last two digits.
▶ The Complete Formula
- [thousands] + [hundreds] + and + [last two digits]
- 1,234 → one thousand two hundred and thirty-four
- 4,506 → four thousand five hundred and six
- If hundreds = 0: skip it → 5,078 = five thousand and seventy-eight
- If last two digits = 00: no “and” → 7,200 = seven thousand two hundred
How 2,345 is built:
2,345
=
2,000two thousand
+
300three hundred
+
and
+
45forty-five
▶ two thousand three hundred and forty-five
How 5,078 is built (no hundreds):
5,078
=
5,000five thousand
+
000no hundreds
+
and
+
78seventy-eight
▶ five thousand and seventy-eight
How 9,400 is built (no “and”):
9,400
=
9,000nine thousand
+
400four hundred
+
00nothing
▶ nine thousand four hundred (no “and”)
▶ Solved Example 5
Write in words: 3,462
- 1Thousands: 3,000 → three thousand
- 2Hundreds: 400 → four hundred
- 3Last two digits: 62 → sixty-two
- 4Join: three thousand four hundred and sixty-two
3,462 → three thousand four hundred and sixty-two
▶ Solved Example 6 — Figures from words
Write in figures: six thousand two hundred and nine
- 1“six thousand” → 6 in thousands place.
- 2“two hundred” → 2 in hundreds place.
- 3“nine” → 9 in ones. Tens = 0.
- 4Result: 6,209.
six thousand two hundred and nine → 6,209
✍ Practice — Concept 6
Q11
Write in words: 2,345 4,078 8,500 9,999.
▼
Answer
2,345 → two thousand three hundred and forty-five
4,078 → four thousand and seventy-eight
8,500 → eight thousand five hundred
9,999 → nine thousand nine hundred and ninety-nine
4,078 → four thousand and seventy-eight
8,500 → eight thousand five hundred
9,999 → nine thousand nine hundred and ninety-nine
Q12
Write in figures: three thousand four hundred and sixty-two | five thousand and nine | eight thousand two hundred.
▼
Answer
three thousand four hundred and sixty-two → 3,462
five thousand and nine → 5,009
eight thousand two hundred → 8,200
five thousand and nine → 5,009
eight thousand two hundred → 8,200
Q13
A school library has seven thousand and ten books. Write this as a number.
▼
Answer
seven thousand and ten → 7,010
★ Quick Revision — Key Points
- Special names 1–20: learn eleven, twelve, thirteen, fifteen, eighteen carefully.
- 21–99: [tens word] + hyphen + [ones word]. Tricky: forty, fifty, ninety.
- Hundreds: [digit] + hundred (no ‘s’). 300 = three hundred.
- 3-digit formula: [hundreds] + and + [last two digits].
- No “and” when last two digits are 00: 700 = seven hundred.
- 4-digit formula: [thousands] + [hundreds] + and + [last two digits].
- Skip hundreds if = 0: 5,078 = five thousand and seventy-eight.
▶ Exam Style Questions
Test Yourself
Q1
Write in words: (a) 15 (b) 40 (c) 72 (d) 99
▼
Answer
(a) fifteen | (b) forty | (c) seventy-two | (d) ninety-nine
Q2
Write in words: (a) 208 (b) 315 (c) 500 (d) 999
▼
Answer
(a) two hundred and eight
(b) three hundred and fifteen
(c) five hundred
(d) nine hundred and ninety-nine
(b) three hundred and fifteen
(c) five hundred
(d) nine hundred and ninety-nine
Q3
Write in words: (a) 2,345 (b) 5,089 (c) 7,200 (d) 9,999
▼
Answer
(a) two thousand three hundred and forty-five
(b) five thousand and eighty-nine
(c) seven thousand two hundred
(d) nine thousand nine hundred and ninety-nine
(b) five thousand and eighty-nine
(c) seven thousand two hundred
(d) nine thousand nine hundred and ninety-nine
Q4
Write in figures: (a) nine hundred and four (b) four thousand and seventy-eight (c) nine thousand nine hundred and ninety-nine
▼
Answer
(a) 904 | (b) 4,078 | (c) 9,999
Q5
Spot the mistake: “6,050 = six thousand and fifty” — is this correct? Explain.
▼
Answer
Correct. 6,050 has 6 thousands, 0 hundreds and 50 left. Since hundreds = 0, we skip it and write six thousand and fifty. ✓
Q6
Riya scored three thousand two hundred and fifteen marks in a reading challenge. Write her score in figures.
▼
Answer
three thousand two hundred and fifteen → 3,215
📄 Free Worksheet
Master number names from 1 to 9,999 with our free printable worksheet — 40 questions, both words to figures and figures to words. No login required.
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