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: 14×29
    Solution:
    14×29 = 406
    Column vertical calculation:

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

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 94×33
    Solution:
    94×33 = 3102
    Column vertical calculation:

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

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 89×66
    Solution:
    89×66 = 5874
    Column vertical calculation:

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

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 55×93
    Solution:
    55×93 = 5115
    Column vertical calculation:

							5	5
✖							9	3
						1	6	5
					4	9	5
					5	1	1	5

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 99×75
    Solution:
    99×75 = 7425
    Column vertical calculation:

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

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 54×35
    Solution:
    54×35 = 1890
    Column vertical calculation:

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

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 56×45
    Solution:
    56×45 = 2520
    Column vertical calculation:

							5	6
✖							4	5
						2	8	0
					2	2	4
					2	5	2	0

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>>注：本次最多计算 7 道题。

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