Question

676-253 777-456836-513578-446 решение столбиком.(уже решила)2) в каждом уменьшаемом измени одну цифру так, чтобы в разряде единиц появился переход через разряд.найди значение новых разностей.3)выполни задание пункта 2 так чтобы переход был в разряде десятков,а затем в двух разрядах. найди значения новых разностей.4) реши столбиком: 300-128604-239

Answer 1

604
-239
365


300
-128
172

Answer 2

Task 1: Solving the Subtraction Problem

To solve the subtraction problem 676 - 253 - 777 - 456 - 836 - 513578 - 446, we can use the column method. Here's the step-by-step solution:

       676
     - 253
     - 777
     - 456
     - 836
   - 513578
     - 446
 __________

Starting from the rightmost column (ones place), we subtract the numbers vertically:

- In the ones place, we have 6 - 3 - 7 - 6 - 8 - 8 - 6 = -22. Write down -2 and carry over 2 to the tens place. - In the tens place, we have 7 - 5 - 7 - 5 - 3 - 7 - 4 = -34. Write down -4 and carry over 3 to the hundreds place. - In the hundreds place, we have 6 - 2 - 7 - 4 - 6 - 5 - 4 = -22. Write down -2 and carry over 2 to the thousands place. - In the thousands place, we have 0 - 0 - 5 - 5 - 1 - 1 - 0 = -12. Write down -2 and carry over 1 to the ten thousands place. - In the ten thousands place, we have 0 - 0 - 1 - 3 - 5 - 5 - 0 = -14. Write down -4 and carry over 1 to the hundred thousands place. - In the hundred thousands place, we have 0 - 0 - 5 - 7 - 7 - 1 - 0 = -20. Write down -0 and carry over 2 to the millions place. - In the millions place, we have 0 - 0 - 3 - 7 - 4 - 0 - 0 = -14. Write down -4.

Therefore, the solution to the subtraction problem 676 - 253 - 777 - 456 - 836 - 513578 - 446 is -442,444.

Task 2: Changing Digits to Create a Carryover in the Ones Place

To create a carryover in the ones place, we need to change one digit in each number. Let's perform this task on the given numbers:

- 676: Change the digit in the ones place to 7. The new number is 677. - 253: Change the digit in the ones place to 4. The new number is 254. - 777: Change the digit in the ones place to 8. The new number is 778. - 456: Change the digit in the ones place to 7. The new number is 457. - 836: Change the digit in the ones place to 7. The new number is 837. - 513578: Change the digit in the ones place to 9. The new number is 513579. - 446: Change the digit in the ones place to 7. The new number is 447.

The new set of numbers is: 677, 254, 778, 457, 837, 513579, 447.

Task 3: Changing Digits to Create a Carryover in the Tens and Hundreds Place

To create a carryover in the tens place, we need to change one digit in each number. Let's perform this task on the new set of numbers:

- 677: Change the digit in the tens place to 8. The new number is 687. - 254: Change the digit in the tens place to 6. The new number is 264. - 778: Change the digit in the tens place to 8. The new number is 788. - 457: Change the digit in the tens place to 6. The new number is 467. - 837: Change the digit in the tens place to 8. The new number is 847. - 513579: Change the digit in the tens place to 8. The new number is 513589. - 447: Change the digit in the tens place to 5. The new number is 457.

To create a carryover in the hundreds place, we need to change one digit in each number. Let's perform this task on the updated set of numbers:

- 687: Change the digit in the hundreds place to 8. The new number is 787. - 264: Change the digit in the hundreds place to 3. The new number is 364. - 788: Change the digit in the hundreds place to 8. The new number is 888. - 467: Change the digit in the hundreds place to 5. The new number is 567. - 847: Change the digit in the hundreds place to 9. The new number is 947. - 513589: Change the digit in the hundreds place to 6. The new number is 513689. - 457: Change the digit in the hundreds place to 3. The new number is 457.

The new set of numbers is: 787, 364, 888, 567, 947, 513689, 457.

Task 4: Solving the Subtraction Problem

To solve the subtraction problem 300 - 128604 - 239, we can use the column method. Here's the step-by-step solution:

       300
   - 128604
     - 239
 __________

Starting from the rightmost column (ones place), we subtract the numbers vertically:

- In the ones place, we have 0 - 4 - 9 = -13. Write down -3 and carry over 1 to the tens place. - In the tens place, we have 0 - 0 - 3 = -3. Write down -3 and carry over 0 to the hundreds place. - In the hundreds place, we have 3 - 6 - 2 = -5. Write down -5.

Therefore, the solution to the subtraction problem 300 - 128604 - 239 is -533.

Please let me know if there's anything else I can help you with!