Class 3 - Maths - Number Names

Learning Objectives

Students will be able to write numbers 1 to 20 in words.
Students will be able to write 2-digit, 3-digit, and 4-digit numbers in words.
Students will be able to read number names and write the correct numeral.
Students will be able to avoid common spelling mistakes in number names.

Let Us Begin!

When you write a cheque at a bank or fill a form, you must write numbers in words. For example, if your school has 1,250 students, you write: One thousand two hundred fifty.

Knowing number names helps us read and write numbers correctly in everyday life.

Numbers 1 to 20 in Words

Number	Name	Number	Name	Number	Name	Number	Name
1	One	6	Six	11	Eleven	16	Sixteen
2	Two	7	Seven	12	Twelve	17	Seventeen
3	Three	8	Eight	13	Thirteen	18	Eighteen
4	Four	9	Nine	14	Fourteen	19	Nineteen
5	Five	10	Ten	15	Fifteen	20	Twenty

Tens (Counting by 10s):

10	20	30	40	50	60	70	80	90
Ten	Twenty	Thirty	Forty	Fifty	Sixty	Seventy	Eighty	Ninety

Writing Bigger Numbers in Words

2-Digit Numbers: Write the tens name, then the ones name.

Example: 47 = Forty-seven. 83 = Eighty-three.

3-Digit Numbers: Write the hundreds, then the rest.

Example: 365 = Three hundred sixty-five. 509 = Five hundred nine.

4-Digit Numbers: Write the thousands, then the hundreds, then the rest.

Example: 2,748 = Two thousand seven hundred forty-eight.

Example: 6,005 = Six thousand five.

Think about it: For 4,030, we skip the hundreds and ones that are zero. We write: Four thousand thirty.

Common Mistakes -- Be Careful!

Wrong Spelling	Correct Spelling
Fourty	Forty (no "u")
Eigth	Eight (remember the "gh")
Ninty	Ninety (keep the "e")
Twelth	Twelve
Thirtee	Thirteen (ends in "teen")

Key Words and Meanings

Word	Meaning
Numeral	A number written using digits (like 45, 372)
Number Name	A number written using words (like Forty-five)
Digit	The symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Place Value	The value of a digit based on its position

Examples

Example 1: Writing a 3-Digit Number in Words

Write 526 in words.

5 hundreds + 2 tens + 6 ones = Five hundred twenty-six.

Example 2: Writing a 4-Digit Number in Words

Write 3,407 in words.

3 thousands + 4 hundreds + 0 tens + 7 ones = Three thousand four hundred seven.

Example 3: Writing the Numeral from Words

Write the numeral for "Seven thousand sixty".

7 thousands + 0 hundreds + 6 tens + 0 ones = 7,060.

Key Points to Remember

Learn number names 1 to 20 by heart -- they do not follow a simple pattern.
For 2-digit numbers, say the tens name first, then the ones.
For 3-digit and 4-digit numbers, break the number by place value.
Forty has no "u". Eight has "gh". Ninety keeps the "e".
Skip any place that has zero (e.g., 305 = Three hundred five, not "three hundred zero five").

Practice Questions

A. Write the Number Name

58 =
146 =
730 =
2,509 =
8,040 =

B. Write the Numeral

Seventy-three =
Four hundred fifteen =
Nine hundred one =
Two thousand three hundred sixty =
Five thousand eight =

C. Correct the Spelling

Fourty =
Eigth =
Ninty =
Twelth =

D. Multiple Choice Questions

What is the correct spelling?
(a) Fourty(b) Forty(c) Fortey(d) Fourtey
Which numeral is "Six thousand two hundred nine"?
(a) 6,290(b) 6,029(c) 6,209(d) 629

Fun Activity -- Number Names Around You

Find 5 numbers around your home (on a calendar, a book page, a price tag, a phone number). Write each number and its name below.

1. Number: ____________ Name: ___________________________________________

2. Number: ____________ Name: ___________________________________________

3. Number: ____________ Name: ___________________________________________

4. Number: ____________ Name: ___________________________________________

5. Number: ____________ Name: ___________________________________________

Mathematics -- Class 3

Mathematics -- Class 3 (continued)