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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: 5 questions will be solved this time.Among them
☆3 arithmetic calculations
☆2 integer calculations
[1/5 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 299999999999×399999999999
Solution:
299999999999×399999999999 = 119999999999300000000001
Column vertical calculation:
| 2 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | |||||||||||||||||
| ✖ | 3 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 | ||||||||||||||||
| 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 7 | |||||||||||||||||
| 1 | 1 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |||||
[2/5 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 777777777777×555555555555
Solution:
777777777777×555555555555 = 432098765431234567901235
Column vertical calculation:
| 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | |||||||||||||||||
| ✖ | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | ||||||||||||||||
| 4 | 3 | 2 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 9 | 0 | 1 | 2 | 3 | 5 | |||||
[3/5 Formula]
Work: Calculate the value of equation 1.1+1.5+1.9+2.3+2.7+3.1+3.5+3.9+4.3 .
Question type: Mathematical calculation
Solution:
1.1+1.5+1.9+2.3+2.7+3.1+3.5+3.9+4.3
=2.6+1.9+2.3+2.7+3.1+3.5+3.9+4.3
=4.5+2.3+2.7+3.1+3.5+3.9+4.3
=6.8+2.7+3.1+3.5+3.9+4.3
=9.5+3.1+3.5+3.9+4.3
=12.6+3.5+3.9+4.3
=16.1+3.9+4.3
=20+4.3
=24.3
Answer:1.1+1.5+1.9+2.3+2.7+3.1+3.5+3.9+4.3=24.3
[4/5 Formula]
Work: Calculate the value of equation (129+1419+14319+143319+1433319+14333319+143333319)÷43 .
Question type: Mathematical calculation
Solution:
(129+1419+14319+143319+1433319+14333319+143333319)÷43
=159259143÷43
=3703701
Answer:(129+1419+14319+143319+1433319+14333319+143333319)÷43=3703701
[5/5 Formula]
Work: Calculate the value of equation 98765+9876.5+987.65+98.765+9.8765+0.98765 .
Question type: Mathematical calculation
Solution:
98765+9876.5+987.65+98.765+9.8765+0.98765
=108641.5+987.65+98.765+9.8765+0.98765
=109629.15+98.765+9.8765+0.98765
=109727.915+9.8765+0.98765
=109737.7915+0.98765
=109738.77915
Answer:98765+9876.5+987.65+98.765+9.8765+0.98765=109738.77915