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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 addition
Original question: 640+90
Solution:
640+90 = 730
Column vertical calculation:
| 6 | 4 | 0 | |||
| ➕ | 1 | 9 | 0 | ||
| 7 | 3 | 0 | |||
[2/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 220-80
Solution:
220-80 = 140
Column vertical calculation:
| 1 | |||||
| 2 | 2 | 0 | |||
| ➖ | 8 | 0 | |||
| 1 | 4 | 0 | |||
[3/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 300+400
Solution:
300+400 = 700
Column vertical calculation:
| 3 | 0 | 0 | |||
| ➕ | 4 | 0 | 0 | ||
| 7 | 0 | 0 | |||
[4/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 740+800
Solution:
740+800 = 1540
Column vertical calculation:
| 7 | 4 | 0 | |||
| ➕ | 1 | 8 | 0 | 0 | |
| 1 | 5 | 4 | 0 | ||
[5/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 280-60
Solution:
280-60 = 220
Column vertical calculation:
| 2 | 8 | 0 | |||
| ➖ | 6 | 0 | |||
| 2 | 2 | 0 | |||
[6/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 510-300
Solution:
510-300 = 210
Column vertical calculation:
| 5 | 1 | 0 | |||
| ➖ | 3 | 0 | 0 | ||
| 2 | 1 | 0 | |||
[7/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 540+900
Solution:
540+900 = 1440
Column vertical calculation:
| 5 | 4 | 0 | |||
| ➕ | 1 | 9 | 0 | 0 | |
| 1 | 4 | 4 | 0 | ||
>>注：本次最多计算 7 道题。