Overview: 1 questions will be solved this time.Among them
☆1 integer calculations
[1/1 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 9999999999*9999999999 Solution:
9999999999*9999999999 =
99999999980000000001 Column vertical calculation:
| | | | | | | | | | | | | | | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
✖ | | | | | | | | | | | | | | | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
|
| | | | | | | | | | | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 |
| | | | | | | | | | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | |
| | | | | | | | | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | | |
| | | | | | | | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | | | |
| | | | | | | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | | | | |
| | | | | | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | | | | | |
| | | | | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | | | | | | |
| | | | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | | | | | | | |
| | | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | | | | | | | | |
| | | | | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | | | | | | | | | |
|
| | | | | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
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