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Mathematical calculation：
Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 7 questions will be solved this time.Among them
☆7 integer calculations
[1/7 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 34×41
Solution:
34×41 = 1394
Column vertical calculation:
| 3 | 4 | |||||||
| ✖ | 4 | 1 | ||||||
| 3 | 4 | |||||||
| 1 | 3 | 6 | ||||||
| 1 | 3 | 9 | 4 | |||||
[2/7 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 77×19
Solution:
77×19 = 1463
Column vertical calculation:
| 7 | 7 | |||||||
| ✖ | 1 | 9 | ||||||
| 6 | 9 | 3 | ||||||
| 7 | 7 | |||||||
| 1 | 4 | 6 | 3 | |||||
[3/7 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 27×79
Solution:
27×79 = 2133
Column vertical calculation:
| 2 | 7 | |||||||
| ✖ | 7 | 9 | ||||||
| 2 | 4 | 3 | ||||||
| 1 | 8 | 9 | ||||||
| 2 | 1 | 3 | 3 | |||||
[4/7 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 78×18
Solution:
78×18 = 1404
Column vertical calculation:
| 7 | 8 | |||||||
| ✖ | 1 | 8 | ||||||
| 6 | 2 | 4 | ||||||
| 7 | 8 | |||||||
| 1 | 4 | 0 | 4 | |||||
[5/7 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 17×79
Solution:
17×79 = 1343
Column vertical calculation:
| 1 | 7 | |||||||
| ✖ | 7 | 9 | ||||||
| 1 | 5 | 3 | ||||||
| 1 | 1 | 9 | ||||||
| 1 | 3 | 4 | 3 | |||||
[6/7 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 78×27
Solution:
78×27 = 2106
Column vertical calculation:
| 7 | 8 | |||||||
| ✖ | 2 | 7 | ||||||
| 5 | 4 | 6 | ||||||
| 1 | 5 | 6 | ||||||
| 2 | 1 | 0 | 6 | |||||
[7/7 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 37×47
Solution:
37×47 = 1739
Column vertical calculation:
| 3 | 7 | |||||||
| ✖ | 4 | 7 | ||||||
| 2 | 5 | 9 | ||||||
| 1 | 4 | 8 | ||||||
| 1 | 7 | 3 | 9 | |||||
>>注：本次最多计算 7 道题。