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: 97×76
    Solution:
    97×76 = 7372
    Column vertical calculation:

							9	7
✖							7	6
						5	8	2
					6	7	9
					7	3	7	2

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 77×64
    Solution:
    77×64 = 4928
    Column vertical calculation:

							7	7
✖							6	4
						3	0	8
					4	6	2
					4	9	2	8

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 37×76
    Solution:
    37×76 = 2812
    Column vertical calculation:

							3	7
✖							7	6
						2	2	2
					2	5	9
					2	8	1	2

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 45×37
    Solution:
    45×37 = 1665
    Column vertical calculation:

							4	5
✖							3	7
						3	1	5
					1	3	5
					1	6	6	5

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 99×83
    Solution:
    99×83 = 8217
    Column vertical calculation:

							9	9
✖							8	3
						2	9	7
					7	9	2
					8	2	1	7

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 26×95
    Solution:
    26×95 = 2470
    Column vertical calculation:

							2	6
✖							9	5
						1	3	0
					2	3	4
					2	4	7	0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 58×26
    Solution:
    58×26 = 1508
    Column vertical calculation:

							5	8
✖							2	6
						3	4	8
					1	1	6
					1	5	0	8

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>>注：本次最多计算 7 道题。

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