Class 3 Maths - TAMILNADU
House of Hundreds – I
The chapter House of Hundreds – I from Tamil Nadu Samacheer Kalvi Class 3 Mathematics introduces young learners to the fascinating world of three-digit numbers. Students learn to count beyond 99, understand place value up to hundreds, and read and write numbers from 100 to 200. This chapter lays a strong mathematical foundation for addition and subtraction of larger numbers in later classes. It helps children visualize grouping objects in hundreds, tens, and units using blocks and currency notes, making abstract numbers concrete and easy to understand for school exams.
Start Learning FreeKey Concepts
Introduction to 100
When we add 1 to 99, we get the first three-digit number, which is 100.
Place Value (Hundreds, Tens, Units)
In a three-digit number, the digits represent Hundreds, Tens, and Units from left to right.
Number Names
Learning to spell and write the correct English number words for numbers ranging from 100 to 200.
Abacus Representation
Using beads on an abacus spike rod to show the count of hundreds, tens, and ones.
Expanded Form
Writing a three-digit number as the sum of its hundreds, tens, and units, such as 145 = 100 + 40 + 5.
Important Formulas
Board Exam Info
In Tamil Nadu Samacheer Kalvi Class 3 Mathematics exams, this chapter usually carries around 8 to 12 marks. Common question types include writing number names, filling in missing numbers, expanding numbers, and drawing or reading beads on an abacus.
Frequently Asked Questions
What comes after 99 in counting?
The number that comes after 99 is 100, which is the first three-digit number.
How do you write 156 in expanded form?
156 can be written in expanded form as 100 + 50 + 6.
How many tens make one hundred?
10 tens make one hundred (10 x 10 = 100).
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