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: 79×62
    Solution:
    79×62 = 4898
    Column vertical calculation:

							7	9
✖							6	2
						1	5	8
					4	7	4
					4	8	9	8

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 81×49
    Solution:
    81×49 = 3969
    Column vertical calculation:

							8	1
✖							4	9
						7	2	9
					3	2	4
					3	9	6	9

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 35×16
    Solution:
    35×16 = 560
    Column vertical calculation:

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

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 32×30
    Solution:
    32×30 = 960
    Column vertical calculation:

							3	2
✖							3	0
							0	0
						9	6
						9	6	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 48×43
    Solution:
    48×43 = 2064
    Column vertical calculation:

							4	8
✖							4	3
						1	4	4
					1	9	2
					2	0	6	4

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 49×32
    Solution:
    49×32 = 1568
    Column vertical calculation:

							4	9
✖							3	2
							9	8
					1	4	7
					1	5	6	8

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 33×16
    Solution:
    33×16 = 528
    Column vertical calculation:

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

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>>注：本次最多计算 7 道题。

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