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: 341×4
    Solution:
    341×4 = 1364
    Column vertical calculation:

						3	4	1
✖								4
					1	3	6	4
					1	3	6	4

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 232×5
    Solution:
    232×5 = 1160
    Column vertical calculation:

						2	3	2
✖								5
					1	1	6	0
					1	1	6	0

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 655×6
    Solution:
    655×6 = 3930
    Column vertical calculation:

						6	5	5
✖								6
					3	9	3	0
					3	9	3	0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 374×4
    Solution:
    374×4 = 1496
    Column vertical calculation:

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

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 722×4
    Solution:
    722×4 = 2888
    Column vertical calculation:

						7	2	2
✖								4
					2	8	8	8
					2	8	8	8

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 385×5
    Solution:
    385×5 = 1925
    Column vertical calculation:

						3	8	5
✖								5
					1	9	2	5
					1	9	2	5

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 826×6
    Solution:
    826×6 = 4956
    Column vertical calculation:

						8	2	6
✖								6
					4	9	5	6
					4	9	5	6

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>>注：本次最多计算 7 道题。

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