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: 29×75
    Solution:
    29×75 = 2175
    Column vertical calculation:

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

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 96×73
    Solution:
    96×73 = 7008
    Column vertical calculation:

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

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 45×63
    Solution:
    45×63 = 2835
    Column vertical calculation:

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

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 58×43
    Solution:
    58×43 = 2494
    Column vertical calculation:

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

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 36×28
    Solution:
    36×28 = 1008
    Column vertical calculation:

							3	6
✖							2	8
						2	8	8
						7	2
					1	0	0	8

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 73×94
    Solution:
    73×94 = 6862
    Column vertical calculation:

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

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 36×58
    Solution:
    36×58 = 2088
    Column vertical calculation:

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

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>>注：本次最多计算 7 道题。

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