Calculate 9000 - 4321 using "One more than the previous one" and "All ...
9 is reduced by 5 (one more than 4 from 4321) to get 4. Apply the sutra to 321: 3 from 9 is 6, 2 from 9 is 7, 1 from 10 is 9. So, 9000 - 4321 = 4679.
Calculate 9000 - 4321 using "One more than the previous one" and "All ...
Understanding the Problem
To solve the equation 9000 - 4321 using the "One more than the previous one" and "All from 9 and the Last from 10" methods, we first break down the numbers.
Breakdown of the Numbers
- 9000 can be thought of as 9000.
- 4321 can be separated into 4000 (4), 300 (3), 20 (2), and 1 (1).
Applying the Method
Now we will use the two methods mentioned:
1. One More Than the Previous One
- Start from the largest place value:
- 9 (thousands) - 4 (thousands) = 5 (thousands).
- 0 (hundreds) - 3 (hundreds) = -3 (hundreds). To adjust, we take "one more":
- Borrow 1 from the thousands, making it 8 (thousands), leaving us with 10 (hundreds).
- Now, 10 - 3 = 7 (hundreds).
- 0 (tens) - 2 (tens) = -2 (tens). Again, borrow:
- Borrow 1 from the hundreds, making it 6 (hundreds), leaving us with 10 (tens).
- Now, 10 - 2 = 8 (tens).
- 0 (units) - 1 (units) = -1 (units). Borrow again:
- Borrow 1 from the tens, making it 7 (tens), leaving us with 10 (units).
- Now, 10 - 1 = 9 (units).
Final Calculation
So the result from this method gives us:
- 5 (thousands) + 7 (hundreds) + 8 (tens) + 9 (units) = 4679.
Conclusion
Thus, the answer to 9000 - 4321 using the specified methods is 4679, which corresponds to option 'A'.