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: 26×12
    Solution:
    26×12 = 312
    Column vertical calculation:

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

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 46×21
    Solution:
    46×21 = 966
    Column vertical calculation:

							4	6
✖							2	1
							4	6
						9	2
						9	6	6

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 36×49
    Solution:
    36×49 = 1764
    Column vertical calculation:

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

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 62×14
    Solution:
    62×14 = 868
    Column vertical calculation:

							6	2
✖							1	4
						2	4	8
						6	2
						8	6	8

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 31×61
    Solution:
    31×61 = 1891
    Column vertical calculation:

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

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 26×19
    Solution:
    26×19 = 494
    Column vertical calculation:

							2	6
✖							1	9
						2	3	4
						2	6
						4	9	4

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 16×16
    Solution:
    16×16 = 256
    Column vertical calculation:

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

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>>注：本次最多计算 7 道题。

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