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: 808*8
    Solution:
    808*8 = 6464
    Column vertical calculation:

						8	0	8
✖								8
					6	4	6	4
					6	4	6	4

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 290*7
    Solution:
    290*7 = 2030
    Column vertical calculation:

						2	9	0
✖								7
					2	0	3	0
					2	0	3	0

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 329*6
    Solution:
    329*6 = 1974
    Column vertical calculation:

						3	2	9
✖								6
					1	9	7	4
					1	9	7	4

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 727*7
    Solution:
    727*7 = 5089
    Column vertical calculation:

						7	2	7
✖								7
					5	0	8	9
					5	0	8	9

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 396*2
    Solution:
    396*2 = 792
    Column vertical calculation:

						3	9	6
✖								2
						7	9	2
						7	9	2

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 967*8
    Solution:
    967*8 = 7736
    Column vertical calculation:

						9	6	7
✖								8
					7	7	3	6
					7	7	3	6

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 367*9
    Solution:
    367*9 = 3303
    Column vertical calculation:

						3	6	7
✖								9
					3	3	0	3
					3	3	0	3

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>>注：本次最多计算 7 道题。

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