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Roman Numerals
Number Work
Addition and Subtraction
Multiplication and Division
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Multiples and Factors
Decimal Fractions
- Decimal Fractions
- The Decimal Number System
- Concept of Tenths, Hundredths and Thousandths in Decimal
- Concept of Place Value
- Use of Decimal Fraction
- Writing Half, Quarter, Three-quarters and One and a Quarter in Decimal Form
- Addition of Decimal Fraction
- Subtraction of Decimal Fraction
- Decimals Used for Measurement
Measuring Time
Problems on Measurement
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Three Dimensional Objects and Nets
Pictographs
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Preparation for Algebra
Subtraction of six and seven-digit numbers
Subtraction of large numbers, such as six-digit and seven-digit numbers, follows a step-by-step process using the place value system.
Step 1: Arrange the Numbers in Columns
Step 2: Subtract Digits from Right to Left
Step 3: Continue Subtracting for Each Column
Step 4: Write the Final Difference
Subtraction of six-digit numbers:
Example (1): 65,07,843 – 9,25,586
| 14 | 13 | ||||||
| 5 | `\cancel(4)` | 10 | 7 | `\cancel(3)` | 13 | ||
| – | `\cancel(6)` |
`\cancel(5)` 9 |
`\cancel(0)` 2 |
7 5 |
`\cancel(8)` 5 |
`\cancel(4)` 8 |
`\cancel(3)` 6 |
| 5 | 5 | 8 | 2 | 2 | 5 | 7 |
Subtraction of seven-digit numbers:
Example (2): 34,61,058 – 27,04,579
|
3 _ 2 |
4
7 |
6
0 |
1
4 |
0
5 |
5
7 |
8
9 |
| 0 | 7 | 5 | 6 | 4 | 7 | 9 |
As shown in the above example, learn to subtract by keeping the borrowed numbers in your mind without writing them down.
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