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: 2357*212134493 Solution:
2357*212134493 =
500001000001 Column vertical calculation:
| | | | | | | | | | | | | | 2 | 3 | 5 | 7 |
✖ | | | | | | | | | 2 | 1 | 2 | 1 | 3 | 4 | 4 | 9 | 3 |
|
| | | | | | | | | | | | | | 7 | 0 | 7 | 1 |
| | | | | | | | | | | | 2 | 1 | 2 | 1 | 3 | |
| | | | | | | | | | | | 9 | 4 | 2 | 8 | | |
| | | | | | | | | | | 9 | 4 | 2 | 8 | | | |
| | | | | | | | | | 7 | 0 | 7 | 1 | | | | |
| | | | | | | | | 2 | 3 | 5 | 7 | | | | | |
| | | | | | | | 4 | 7 | 1 | 4 | | | | | | |
| | | | | | | 2 | 3 | 5 | 7 | | | | | | | |
| | | | | | 4 | 7 | 1 | 4 | | | | | | | | |
|
| | | | | | 5 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
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