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: 1600×6000
    Solution:
    1600×6000 = 9600000
    Column vertical calculation:

									1	6	0	0
✖									6	0	0	0
									0	0	0	0
								0	0	0	0
							0	0	0	0
						9	6	0	0
						9	6	0	0	0	0	0

[2/6 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 96000×2000
    Solution:
    96000×2000 = 192000000
    Column vertical calculation:

									9	6	0	0	0
✖										2	0	0	0
									0	0	0	0	0
								0	0	0	0	0
							0	0	0	0	0
					1	9	2	0	0	0
					1	9	2	0	0	0	0	0	0

[3/6 Integer column vertical calculation]
    Question type: Integer division
    Original question: 280000÷700
    Solution:
    280000÷700 = 400
    Column vertical calculation:

							4	0	0
7	0	0	丿	2	8	0	0	0	0
				2	8	0	0
							0	0	0
									0
									0

[4/6 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 3000×60000
    Solution:
    3000×60000 = 180000000
    Column vertical calculation:

										3	0	0	0
✖									6	0	0	0	0
										0	0	0	0
									0	0	0	0
								0	0	0	0
							0	0	0	0
					1	8	0	0	0
					1	8	0	0	0	0	0	0	0

[5/6 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 7000×60000
    Solution:
    7000×60000 = 420000000
    Column vertical calculation:

										7	0	0	0
✖									6	0	0	0	0
										0	0	0	0
									0	0	0	0
								0	0	0	0
							0	0	0	0
					4	2	0	0	0
					4	2	0	0	0	0	0	0	0

[6/6 Integer column vertical calculation]
    Question type: Integer division
    Original question: 2800000÷7000
    Solution:
    2800000÷7000 = 400
    Column vertical calculation:

									4	0	0
7	0	0	0	丿	2	8	0	0	0	0	0
					2	8	0	0	0
									0	0	0
											0
											0

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