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: 86×60
    Solution:
    86×60 = 5160
    Column vertical calculation:

							8	6
✖							6	0
							0	0
					5	1	6
					5	1	6	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 260×6
    Solution:
    260×6 = 1560
    Column vertical calculation:

						2	6	0
✖								6
					1	5	6	0
					1	5	6	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 170÷17
    Solution:
    170÷17 = 10
    Column vertical calculation:

				1	0
1	7	丿	1	7	0
			1	7
				0	0
					0
					0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 110×20
    Solution:
    110×20 = 2200
    Column vertical calculation:

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

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 304×2
    Solution:
    304×2 = 608
    Column vertical calculation:

						3	0	4
✖								2
						6	0	8
						6	0	8

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1050÷21
    Solution:
    1050÷21 = 50
    Column vertical calculation:

					5	0
2	1	丿	1	0	5	0
			1	0	5
					0	0
						0
						0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 104×30
    Solution:
    104×30 = 3120
    Column vertical calculation:

							1	0	4
✖								3	0
							0	0	0
						3	1	2
						3	1	2	0

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>>注：本次最多计算 7 道题。

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