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: 8×703
    Solution:
    8×703 = 5624
    Column vertical calculation:

								8
✖						7	0	3
							2	4
							0
					5	6
					5	6	2	4

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 542×5
    Solution:
    542×5 = 2710
    Column vertical calculation:

						5	4	2
✖								5
					2	7	1	0
					2	7	1	0

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 9×996
    Solution:
    9×996 = 8964
    Column vertical calculation:

								9
✖						9	9	6
							5	4
						8	1
					8	1
					8	9	6	4

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 2×291
    Solution:
    2×291 = 582
    Column vertical calculation:

								2
✖						2	9	1
								2
						1	8
						4
						5	8	2

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 5×176
    Solution:
    5×176 = 880
    Column vertical calculation:

								5
✖						1	7	6
							3	0
						3	5
						5
						8	8	0

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 520×3
    Solution:
    520×3 = 1560
    Column vertical calculation:

						5	2	0
✖								3
					1	5	6	0
					1	5	6	0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 6×422
    Solution:
    6×422 = 2532
    Column vertical calculation:

								6
✖						4	2	2
							1	2
						1	2
					2	4
					2	5	3	2

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>>注：本次最多计算 7 道题。

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