Class 3 Maths - ICSE
Numbers
In Class 3 ICSE Mathematics, the chapter on Numbers builds a strong foundation by teaching students about 4-digit numbers from 1001 to 9999. Students learn how to read, write, compare, and order these large numbers. The chapter covers place value and face value of digits, expanding numbers, and writing number names. It also introduces even and odd numbers. Mastering this chapter is very important for board exams as it forms the base for advanced arithmetic operations like addition, subtraction, multiplication, and division which appear in higher classes and high-scoring exam questions.
Start Learning FreeKey Concepts
4-Digit Numbers
Numbers that have four digits, starting from 1000 and going up to 9999, represented in Thousands, Hundreds, Tens, and Ones.
Place Value and Face Value
Face value is the actual digit itself, while place value is the value of the digit based on its position in the number.
Expanded Form
Writing a number by showing the value of each digit as a sum, such as 4352 = 4000 + 300 + 50 + 2.
Comparing Numbers
Using symbols like greater than (>), less than (<), and equal to (=) to find out which number is bigger or smaller.
Even and Odd Numbers
Even numbers end in 0, 2, 4, 6, or 8 and can be paired up, while odd numbers end in 1, 3, 5, 7, or 9 and leave a remainder.
Important Formulas
Board Exam Info
In the ICSE Class 3 Mathematics curriculum, the chapter on Numbers typically carries around 10 to 15 marks. Common question types include writing number names, finding the place value and face value of underlined digits, writing numbers in expanded and short form, comparing numbers using >, <, or =, and arranging numbers in ascending and descending order.
Frequently Asked Questions
What is the difference between place value and face value?
Face value is the digit itself, whereas place value is the digit multiplied by its position value like Tens or Hundreds.
How do we find the predecessor and successor of a 4-digit number?
To find the predecessor, subtract 1 from the number. To find the successor, add 1 to the number.
How can we easily check if a large number is even or odd?
Just look at the digit in the Ones place; if it is 0, 2, 4, 6, or 8, the number is even, otherwise it is odd.
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