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: 33×7
    Solution:
    33×7 = 231
    Column vertical calculation:

						3	3
✖							7
					2	3	1
					2	3	1

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 69×7
    Solution:
    69×7 = 483
    Column vertical calculation:

						6	9
✖							7
					4	8	3
					4	8	3

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 96×7
    Solution:
    96×7 = 672
    Column vertical calculation:

						9	6
✖							7
					6	7	2
					6	7	2

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 64×7
    Solution:
    64×7 = 448
    Column vertical calculation:

						6	4
✖							7
					4	4	8
					4	4	8

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 95×7
    Solution:
    95×7 = 665
    Column vertical calculation:

						9	5
✖							7
					6	6	5
					6	6	5

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 59×7
    Solution:
    59×7 = 413
    Column vertical calculation:

						5	9
✖							7
					4	1	3
					4	1	3

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 91×7
    Solution:
    91×7 = 637
    Column vertical calculation:

						9	1
✖							7
					6	3	7
					6	3	7

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>>注：本次最多计算 7 道题。

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