Overview: 6 questions will be solved this time.Among them
           ☆6 integer calculations

[1/6 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

[2/6 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 32×20
    Solution:
    32×20 = 640
    Column vertical calculation:

							3	2
✖							2	0
							0	0
						6	4
						6	4	0

[3/6 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 2×600
    Solution:
    2×600 = 1200
    Column vertical calculation:

								2
✖						6	0	0
								0
							0
					1	2
					1	2	0	0

[4/6 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 11×200
    Solution:
    11×200 = 2200
    Column vertical calculation:

								1	1
✖							2	0	0
								0	0
							0	0
						2	2
						2	2	0	0

[5/6 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 13×500
    Solution:
    13×500 = 6500
    Column vertical calculation:

								1	3
✖							5	0	0
								0	0
							0	0
						6	5
						6	5	0	0

[6/6 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 52×200
    Solution:
    52×200 = 10400
    Column vertical calculation:

								5	2
✖							2	0	0
								0	0
							0	0
					1	0	4
					1	0	4	0	0

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