Class 4 Maths - BIHAR
Thousands Around Us
In the Chapter 'Thousands Around Us' from the Class 4 Bihar Board (BSEB) Mathematics syllabus, students step into the world of 4-digit numbers. Young learners will explore how to read, write, and understand numbers beyond 999 up to 9999. The chapter introduces the concept of thousands, place value of digits in a 4-digit number, and how to compare numbers. Mastering this chapter is crucial as it builds a strong foundation for arithmetic operations, helps in everyday estimation like counting money or large crowds, and frequently appears in BSEB school examinations through number naming and place value questions.
Start Learning FreeKey Concepts
Introduction to 4-Digit Numbers
When we add 1 to 999, we get 1000, which is the smallest 4-digit number. All numbers from 1000 to 9999 are 4-digit numbers.
Place Value and Face Value
In a 4-digit number, each digit has a place value based on its position: Ones, Tens, Hundreds, and Thousands. The face value is the digit itself, regardless of its place.
Expanded Form
Writing a number by showing the value of each digit is called expanded form, such as 4582 = 4000 + 500 + 80 + 2.
Comparing Numbers
To compare two 4-digit numbers, we first look at the thousand's place. If they are equal, we compare the hundred's place, and so on.
Number Names
Reading and writing 4-digit numbers in words by stating the thousands, hundreds, tens, and ones clearly.
Important Formulas
Board Exam Info
In Bihar Board (BSEB) Class 4 Mathematics exams, this chapter typically carries around 8 to 12 marks. Common question types include writing number names for 4-digit numbers, finding the place value and face value of a circled digit, writing numbers in expanded form, and filling in blanks with greater than (>), lesser than (<), or equal to (=) signs.
Frequently Asked Questions
What comes after 999?
1000 comes after 999, which is the first 4-digit number.
How do we find the place value of a digit in a 4-digit number?
Multiply the face value of the digit by the value of its position (1000 for thousands, 100 for hundreds, 10 for tens, and 1 for ones).
How do we write number names for 4-digit numbers?
Start from the thousand's place, read the hundred's place together, and then read the tens and ones digits together as a two-digit number.
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