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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: 400+590
Solution:
400+590 = 990
Column vertical calculation:
[2/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 200+490
Solution:
200+490 = 690
Column vertical calculation:
[3/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 300+490
Solution:
300+490 = 790
Column vertical calculation:
[4/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 800-590
Solution:
800-590 = 210
Column vertical calculation:
[5/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 700-490
Solution:
700-490 = 210
Column vertical calculation:
[6/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 700-390
Solution:
700-390 = 310
Column vertical calculation:
[7/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 120+390
Solution:
120+390 = 510
Column vertical calculation:
>>注：本次最多计算 7 道题。
☆7 integer calculations
[1/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 400+590
Solution:
400+590 = 990
Column vertical calculation:
| 4 | 0 | 0 | |||
| ➕ | 5 | 9 | 0 | ||
| 9 | 9 | 0 | |||
[2/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 200+490
Solution:
200+490 = 690
Column vertical calculation:
| 2 | 0 | 0 | |||
| ➕ | 4 | 9 | 0 | ||
| 6 | 9 | 0 | |||
[3/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 300+490
Solution:
300+490 = 790
Column vertical calculation:
| 3 | 0 | 0 | |||
| ➕ | 4 | 9 | 0 | ||
| 7 | 9 | 0 | |||
[4/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 800-590
Solution:
800-590 = 210
Column vertical calculation:
| 1 | |||||
| 8 | 0 | 0 | |||
| ➖ | 5 | 9 | 0 | ||
| 2 | 1 | 0 | |||
[5/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 700-490
Solution:
700-490 = 210
Column vertical calculation:
| 1 | |||||
| 7 | 0 | 0 | |||
| ➖ | 4 | 9 | 0 | ||
| 2 | 1 | 0 | |||
[6/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 700-390
Solution:
700-390 = 310
Column vertical calculation:
| 1 | |||||
| 7 | 0 | 0 | |||
| ➖ | 3 | 9 | 0 | ||
| 3 | 1 | 0 | |||
[7/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 120+390
Solution:
120+390 = 510
Column vertical calculation:
| 1 | 2 | 0 | |||
| ➕ | 31 | 9 | 0 | ||
| 5 | 1 | 0 | |||
>>注：本次最多计算 7 道题。