Class 3 Maths - CBSE
House of Hundreds – I
In the CBSE Class 3 Mathematics chapter 'House of Hundreds – I', students step into the exciting world of three-digit numbers. This chapter builds a strong foundation by teaching children how to read, write, and understand numbers from 100 up to 999. Students learn about place value, identifying hundreds, tens, and ones using colorful blocks and grids. Mastering this chapter is essential for scoring well in school exams, as it forms the basis for future math topics like addition, subtraction, and word problems involving larger numbers.
Start Learning FreeKey Concepts
Introduction to 100
When we have 99 beads and add 1 more bead, we get 100, which is the first three-digit number.
Place Value (Hundreds, Tens, Ones)
In a three-digit number, the digits represent Hundreds, Tens, and Ones from left to right.
Number Names
Reading and writing numbers in words up to 999 based on their place value.
Expanded Form
Breaking down a three-digit number into the sum of its hundreds, tens, and ones (e.g., 345 = 300 + 40 + 5).
Counting in Hundreds
Skip counting by 100s, such as 100, 200, 300, all the way up to 900.
Important Formulas
Board Exam Info
In CBSE Class 3 Mathematics question papers, this chapter typically carries around 5 to 8 marks. Common question types include writing number names, showing numbers in expanded form, identifying place values, and filling in missing numbers in sequences.
Frequently Asked Questions
What comes after 99?
100 comes after 99, which is the smallest three-digit number.
How do I write the place value of a digit in 456?
In 456, the place value of 4 is 400 (Hundreds), 5 is 50 (Tens), and 6 is 6 (Ones).
What is the difference between number and number name?
A number is written in digits (like 254), while a number name is written in words (like Two hundred fifty-four).
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