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: 10×2
    Solution:
    10×2 = 20
    Column vertical calculation:

						1	0
✖							2
						2	0
						2	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 2×40
    Solution:
    2×40 = 80
    Column vertical calculation:

							2
✖						4	0
							0
						8
						8	0

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 6×53
    Solution:
    6×53 = 318
    Column vertical calculation:

							6
✖						5	3
						1	8
					3	0
					3	1	8

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 13×5
    Solution:
    13×5 = 65
    Column vertical calculation:

						1	3
✖							5
						6	5
						6	5

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 70×5
    Solution:
    70×5 = 350
    Column vertical calculation:

						7	0
✖							5
					3	5	0
					3	5	0

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 10×6
    Solution:
    10×6 = 60
    Column vertical calculation:

						1	0
✖							6
						6	0
						6	0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 24×6
    Solution:
    24×6 = 144
    Column vertical calculation:

						2	4
✖							6
					1	4	4
					1	4	4

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>>注：本次最多计算 7 道题。

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