Numbers are the basic unit of mathematics. A number system is a writing system for expressing numbers. Do you want to know how things are measured, counted or compared? Let's find out!

The places ones, tens, and hundred together are called one's period

• The numbers at One's place are named as:
  
  1 = One
  2 = Two
  3 = Three
  4 = Four
  5 = Five
  6 = Six
  7 = Seven
  8 = Eight
  9 = Nine
  
  The numbers at Tens place are named as:
• 10 = Ten
  20 = Twenty
  30 = Thirty
  40 = Forty
  50 = Fifty
  60 = Sixty
  70 = Seventy
  80 = Eighty
  90 = Ninety
• The numbers at Hundred’s place are named as:
  
  100 = One hundred
  200 = Two hundred
  300 = Three hundred
  400 = Four hundred
  500 = Five hundred
  600 = Six hundred
  700 = Seven hundred
  800 = Eight hundred
  900 = Nine hundred

Write the number in words

Guess the numbers

Practice these questions

Q1) In the box given below match the words to the numbers

Q3) Count the hundreds, tens, and ones and write the numbers

Q4) Write the following number in expanded form

Q5) Write the following number in standard form

Q6) Write the value of the underlined digits

Q8) Identify the numbers