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: 485×6
    Solution:
    485×6 = 2910
    Column vertical calculation:

						4	8	5
✖								6
					2	9	1	0
					2	9	1	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 816×8
    Solution:
    816×8 = 6528
    Column vertical calculation:

						8	1	6
✖								8
					6	5	2	8
					6	5	2	8

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 652×8
    Solution:
    652×8 = 5216
    Column vertical calculation:

						6	5	2
✖								8
					5	2	1	6
					5	2	1	6

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 623×8
    Solution:
    623×8 = 4984
    Column vertical calculation:

						6	2	3
✖								8
					4	9	8	4
					4	9	8	4

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 126×6
    Solution:
    126×6 = 756
    Column vertical calculation:

						1	2	6
✖								6
						7	5	6
						7	5	6

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 254×5
    Solution:
    254×5 = 1270
    Column vertical calculation:

						2	5	4
✖								5
					1	2	7	0
					1	2	7	0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 563×3
    Solution:
    563×3 = 1689
    Column vertical calculation:

						5	6	3
✖								3
					1	6	8	9
					1	6	8	9

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>>注：本次最多计算 7 道题。

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