Place Value and Face Value
ICSE · Class 1 · Mathematics
Quick revision notes for Place Value and Face Value — ICSE Class 1 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
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Key Topics to Revise
1. Understanding Place Value
- Place value tells us the value of a digit based on its position in a number.
- In a two-digit number, the rightmost digit is in the ONES place and the left digit is in the TENS place.
- The place value of a digit = digit × value of its place.
2. Understanding Face Value
- Face value is simply the digit itself, no matter where it is in the number.
- It does not change with position.
- Example: In 68, the face value of 6 is 6 and the face value of 8 is 8.
3. Expanded and Compact Form
- Expanded form means writing a number as the sum of the place values of its digits.
- Compact form is the normal way we write numbers using digits.
- Example: 56 in expanded form is 50 + 6. In compact form, it's just 56.
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