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: 18×3
    Solution:
    18×3 = 54
    Column vertical calculation:

						1	8
✖							3
						5	4
						5	4

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 28×2
    Solution:
    28×2 = 56
    Column vertical calculation:

						2	8
✖							2
						5	6
						5	6

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 82×5
    Solution:
    82×5 = 410
    Column vertical calculation:

						8	2
✖							5
					4	1	0
					4	1	0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 44×6
    Solution:
    44×6 = 264
    Column vertical calculation:

						4	4
✖							6
					2	6	4
					2	6	4

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 66×7
    Solution:
    66×7 = 462
    Column vertical calculation:

						6	6
✖							7
					4	6	2
					4	6	2

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 11×6
    Solution:
    11×6 = 66
    Column vertical calculation:

						1	1
✖							6
						6	6
						6	6

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 88×3
    Solution:
    88×3 = 264
    Column vertical calculation:

						8	8
✖							3
					2	6	4
					2	6	4

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>>注：本次最多计算 7 道题。

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