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: 72×11
    Solution:
    72×11 = 792
    Column vertical calculation:

							7	2
✖							1	1
							7	2
						7	2
						7	9	2

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 32×36
    Solution:
    32×36 = 1152
    Column vertical calculation:

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

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 36×14
    Solution:
    36×14 = 504
    Column vertical calculation:

							3	6
✖							1	4
						1	4	4
						3	6
						5	0	4

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 36×72
    Solution:
    36×72 = 2592
    Column vertical calculation:

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

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 56×73
    Solution:
    56×73 = 4088
    Column vertical calculation:

							5	6
✖							7	3
						1	6	8
					3	9	2
					4	0	8	8

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 44×27
    Solution:
    44×27 = 1188
    Column vertical calculation:

							4	4
✖							2	7
						3	0	8
						8	8
					1	1	8	8

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 54×21
    Solution:
    54×21 = 1134
    Column vertical calculation:

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

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>>注：本次最多计算 7 道题。

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