Class 3 Maths - WEST-BENGAL
House of Hundreds – II
The chapter 'House of Hundreds – II' in Class 3 Mathematics builds upon students' previous understanding of three-digit numbers, expanding their skills in counting, place value, and operations up to 1000. Under the West Bengal Board of Secondary Education (WBBSE) curriculum, this chapter teaches children how to read, write, compare, and break down numbers into hundreds, tens, and units. Mastering this chapter is crucial for board exam success as it forms the foundational building block for addition, subtraction, and word problems involving larger numbers in future classes.
Start Learning FreeKey Concepts
Three-Digit Place Value
Every three-digit number has three places: Hundreds, Tens, and Units. For example, in 345, the digit 3 stands for 3 hundreds, 4 stands for 4 tens, and 5 stands for 5 units.
Expanded Form of Numbers
Writing a number by showing the value of each digit. For example, the expanded form of 472 is 400 + 70 + 2.
Number Names up to 1000
Learning to read and spell numbers in words from 100 to 1000 correctly, such as writing 506 as 'Five hundred six'.
Comparison of Three-Digit Numbers
Comparing numbers using symbols like greater than (>), less than (<), or equal to (=) by first looking at the hundreds place, then the tens place.
Before, After, and Between Numbers
Finding the predecessor (number before), successor (number after), and intermediate numbers for any given three-digit number.
Important Formulas
Board Exam Info
In West Bengal Board (WBBSE) Class 3 Mathematics exams, this chapter typically carries around 10 to 15 marks. Common question types include writing numbers in expanded form, filling in the blanks with greater than or less than signs, writing number names, and identifying place values.
Frequently Asked Questions
How do I write the expanded form of a number with a zero like 405?
You write it as 400 + 0 + 5. Even though the tens place is zero, we include it or simply write 400 + 5.
How do we compare two 3-digit numbers like 482 and 428?
First look at the hundreds place. Both have 4. Then look at the tens place. Since 8 tens is greater than 2 tens, 482 is greater than 428 (482 > 428).
What comes after 999?
The number that comes after 999 is 1000, which is the smallest four-digit number.
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