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: 24×500
    Solution:
    24×500 = 12000
    Column vertical calculation:

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

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 133×30
    Solution:
    133×30 = 3990
    Column vertical calculation:

							1	3	3
✖								3	0
							0	0	0
						3	9	9
						3	9	9	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1600÷40
    Solution:
    1600÷40 = 40
    Column vertical calculation:

					4	0
4	0	丿	1	6	0	0
			1	6	0
					0	0
						0
						0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 390×30
    Solution:
    390×30 = 11700
    Column vertical calculation:

							3	9	0
✖								3	0
							0	0	0
					1	1	7	0
					1	1	7	0	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 163×30
    Solution:
    163×30 = 4890
    Column vertical calculation:

							1	6	3
✖								3	0
							0	0	0
						4	8	9
						4	8	9	0

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 3500÷70
    Solution:
    3500÷70 = 50
    Column vertical calculation:

					5	0
7	0	丿	3	5	0	0
			3	5	0
					0	0
						0
						0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 41×600
    Solution:
    41×600 = 24600
    Column vertical calculation:

								4	1
✖							6	0	0
								0	0
							0	0
					2	4	6
					2	4	6	0	0

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>>注：本次最多计算 7 道题。

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