Class 3 Maths - WEST-BENGAL
Double Century
The chapter Double Century in Class 3 Mathematics builds upon the concept of counting up to 100 and introduces young learners to numbers up to 200. Students learn to read, write, and compare numbers from 100 to 200, understand place value with hundreds, tens, and units, and represent numbers using abacus rods and bundles of sticks. This chapter is crucial for WBBSE students as it lays the strong foundation for multi-digit addition, subtraction, and mental math required in higher classes and board examinations.
Start Learning FreeKey Concepts
Understanding 100 (One Hundred)
Ten tens make one hundred, which is written as 100 and is the starting point of three-digit numbers.
Place Value (Hundreds, Tens, and Units)
In a three-digit number like 145, 1 is in the hundreds place, 4 is in the tens place, and 5 is in the ones or units place.
Reading and Writing Numbers up to 200
Students learn the sequence of numbers from 101 to 200 in both digits and number names (e.g., 150 is One Hundred Fifty).
Expanded Form
Breaking down a three-digit number into hundreds, tens, and ones, such as 176 = 100 + 70 + 6.
Before, After, and Between Numbers
Finding predecessor and successor numbers within the range of 1 to 200 and comparing which number is bigger or smaller.
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 number names, expanding numbers, filling in missing numbers in a sequence, and identifying place values.
Frequently Asked Questions
What is a double century in math?
A double century means 200, which is two times one hundred.
How do we write 105 in expanded form?
105 can be written in expanded form as 100 + 0 + 5.
Which is greater, 198 or 200?
200 is greater than 198 because 200 comes after 198 in counting.
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