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: 90800×6000
    Solution:
    90800×6000 = 544800000
    Column vertical calculation:

									9	0	8	0	0
✖										6	0	0	0
									0	0	0	0	0
								0	0	0	0	0
							0	0	0	0	0
					5	4	4	8	0	0
					5	4	4	8	0	0	0	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 88000×60000
    Solution:
    88000×60000 = 5280000000
    Column vertical calculation:

										8	8	0	0	0
✖										6	0	0	0	0
										0	0	0	0	0
									0	0	0	0	0
								0	0	0	0	0
							0	0	0	0	0
					5	2	8	0	0	0
					5	2	8	0	0	0	0	0	0	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 630000÷7000
    Solution:
    630000÷7000 = 90
    Column vertical calculation:

									9	0
7	0	0	0	丿	6	3	0	0	0	0
					6	3	0	0	0
									0	0
										0
										0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 3000×780000
    Solution:
    3000×780000 = 2340000000
    Column vertical calculation:

											3	0	0	0
✖									7	8	0	0	0	0
											0	0	0	0
										0	0	0	0
									0	0	0	0
								0	0	0	0
						2	4	0	0	0
					2	1	0	0	0
					2	3	4	0	0	0	0	0	0	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 118000×800
    Solution:
    118000×800 = 94400000
    Column vertical calculation:

								1	1	8	0	0	0
✖											8	0	0
								0	0	0	0	0	0
							0	0	0	0	0	0
						9	4	4	0	0	0
						9	4	4	0	0	0	0	0

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1680000÷8000
    Solution:
    1680000÷8000 = 210
    Column vertical calculation:

									2	1	0
8	0	0	0	丿	1	6	8	0	0	0	0
					1	6	0	0	0
							8	0	0	0
							8	0	0	0
										0	0
											0
											0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 28000×80000
    Solution:
    28000×80000 = 2240000000
    Column vertical calculation:

										2	8	0	0	0
✖										8	0	0	0	0
										0	0	0	0	0
									0	0	0	0	0
								0	0	0	0	0
							0	0	0	0	0
					2	2	4	0	0	0
					2	2	4	0	0	0	0	0	0	0

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>>注：本次最多计算 7 道题。

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